diff --git a/include/graphics.h b/include/graphics.h
index 49ce74b2e..443dc4ade 100644
--- a/include/graphics.h
+++ b/include/graphics.h
@@ -867,7 +867,7 @@ extern const u32 gMonFrontPic_Mimikyu[];
 extern const u32 gMonFrontPic_Bruxish[];
 extern const u32 gMonFrontPic_Drampa[];
 extern const u32 gMonFrontPic_Dhelmise[];
-extern const u32 gMonFrontPic_Jangmoo[];
+extern const u32 gMonFrontPic_JangmoO[];
 extern const u32 gMonFrontPic_HakamoO[];
 extern const u32 gMonFrontPic_KommoO[];
 extern const u32 gMonFrontPic_TapuKoko[];
@@ -2081,7 +2081,7 @@ extern const u32 gMonBackPic_Mimikyu[];
 extern const u32 gMonBackPic_Bruxish[];
 extern const u32 gMonBackPic_Drampa[];
 extern const u32 gMonBackPic_Dhelmise[];
-extern const u32 gMonBackPic_Jangmoo[];
+extern const u32 gMonBackPic_JangmoO[];
 extern const u32 gMonBackPic_HakamoO[];
 extern const u32 gMonBackPic_KommoO[];
 extern const u32 gMonBackPic_TapuKoko[];
@@ -3287,7 +3287,7 @@ extern const u32 gMonPalette_Mimikyu[];
 extern const u32 gMonPalette_Bruxish[];
 extern const u32 gMonPalette_Drampa[];
 extern const u32 gMonPalette_Dhelmise[];
-extern const u32 gMonPalette_Jangmoo[];
+extern const u32 gMonPalette_JangmoO[];
 extern const u32 gMonPalette_HakamoO[];
 extern const u32 gMonPalette_KommoO[];
 extern const u32 gMonPalette_TapuKoko[];
@@ -4520,7 +4520,7 @@ extern const u32 gMonShinyPalette_Mimikyu[];
 extern const u32 gMonShinyPalette_Bruxish[];
 extern const u32 gMonShinyPalette_Drampa[];
 extern const u32 gMonShinyPalette_Dhelmise[];
-extern const u32 gMonShinyPalette_Jangmoo[];
+extern const u32 gMonShinyPalette_JangmoO[];
 extern const u32 gMonShinyPalette_HakamoO[];
 extern const u32 gMonShinyPalette_KommoO[];
 extern const u32 gMonShinyPalette_TapuKoko[];
@@ -5747,7 +5747,7 @@ extern const u8 gMonIcon_Mimikyu[];
 extern const u8 gMonIcon_Bruxish[];
 extern const u8 gMonIcon_Drampa[];
 extern const u8 gMonIcon_Dhelmise[];
-extern const u8 gMonIcon_Jangmoo[];
+extern const u8 gMonIcon_JangmoO[];
 extern const u8 gMonIcon_HakamoO[];
 extern const u8 gMonIcon_KommoO[];
 extern const u8 gMonIcon_TapuKoko[];
diff --git a/sound/cry_tables.inc b/sound/cry_tables.inc
index 7b5947506..c9da7e679 100644
--- a/sound/cry_tables.inc
+++ b/sound/cry_tables.inc
@@ -1126,7 +1126,7 @@ gCryTable::
 	cry Cry_Bruxish
 	cry Cry_Drampa
 	cry Cry_Dhelmise
-	cry Cry_Jangmoo
+	cry Cry_JangmoO
 	cry Cry_HakamoO
 	cry Cry_KommoO
 	cry Cry_TapuKoko
@@ -3248,7 +3248,7 @@ gCryTable_Reverse::
 	cry_reverse Cry_Bruxish
 	cry_reverse Cry_Drampa
 	cry_reverse Cry_Dhelmise
-	cry_reverse Cry_Jangmoo
+	cry_reverse Cry_JangmoO
 	cry_reverse Cry_HakamoO
 	cry_reverse Cry_KommoO
 	cry_reverse Cry_TapuKoko
diff --git a/sound/direct_sound_data.inc b/sound/direct_sound_data.inc
index 74f5529d7..611808d23 100644
--- a/sound/direct_sound_data.inc
+++ b/sound/direct_sound_data.inc
@@ -3518,7 +3518,7 @@ Cry_Dhelmise::
 	.incbin "sound/direct_sound_samples/cries/dhelmise.bin"
 
 	.align 2
-Cry_Jangmoo::
+Cry_JangmoO::
 	.incbin "sound/direct_sound_samples/cries/jangmo_o.bin"
 
 	.align 2
diff --git a/src/data/graphics/pokemon.h b/src/data/graphics/pokemon.h
index a39f6f35e..314d081ea 100644
--- a/src/data/graphics/pokemon.h
+++ b/src/data/graphics/pokemon.h
@@ -800,7 +800,7 @@ const u32 gMonFrontPic_Mimikyu[] = INCBIN_U32("graphics/pokemon/mimikyu/front.4b
 const u32 gMonFrontPic_Bruxish[] = INCBIN_U32("graphics/pokemon/bruxish/front.4bpp.lz");
 const u32 gMonFrontPic_Drampa[] = INCBIN_U32("graphics/pokemon/drampa/front.4bpp.lz");
 const u32 gMonFrontPic_Dhelmise[] = INCBIN_U32("graphics/pokemon/dhelmise/front.4bpp.lz");
-const u32 gMonFrontPic_Jangmoo[] = INCBIN_U32("graphics/pokemon/jangmo_o/front.4bpp.lz");
+const u32 gMonFrontPic_JangmoO[] = INCBIN_U32("graphics/pokemon/jangmo_o/front.4bpp.lz");
 const u32 gMonFrontPic_HakamoO[] = INCBIN_U32("graphics/pokemon/hakamo_o/front.4bpp.lz");
 const u32 gMonFrontPic_KommoO[] = INCBIN_U32("graphics/pokemon/kommo_o/front.4bpp.lz");
 const u32 gMonFrontPic_TapuKoko[] = INCBIN_U32("graphics/pokemon/tapu_koko/anim_front.4bpp.lz");
@@ -2012,7 +2012,7 @@ const u32 gMonBackPic_Mimikyu[] = INCBIN_U32("graphics/pokemon/mimikyu/back.4bpp
 const u32 gMonBackPic_Bruxish[] = INCBIN_U32("graphics/pokemon/bruxish/back.4bpp.lz");
 const u32 gMonBackPic_Drampa[] = INCBIN_U32("graphics/pokemon/drampa/back.4bpp.lz");
 const u32 gMonBackPic_Dhelmise[] = INCBIN_U32("graphics/pokemon/dhelmise/back.4bpp.lz");
-const u32 gMonBackPic_Jangmoo[] = INCBIN_U32("graphics/pokemon/jangmo_o/back.4bpp.lz");
+const u32 gMonBackPic_JangmoO[] = INCBIN_U32("graphics/pokemon/jangmo_o/back.4bpp.lz");
 const u32 gMonBackPic_HakamoO[] = INCBIN_U32("graphics/pokemon/hakamo_o/back.4bpp.lz");
 const u32 gMonBackPic_KommoO[] = INCBIN_U32("graphics/pokemon/kommo_o/back.4bpp.lz");
 const u32 gMonBackPic_TapuKoko[] = INCBIN_U32("graphics/pokemon/tapu_koko/back.4bpp.lz");
@@ -3218,7 +3218,7 @@ const u32 gMonPalette_Mimikyu[] = INCBIN_U32("graphics/pokemon/mimikyu/normal.gb
 const u32 gMonPalette_Bruxish[] = INCBIN_U32("graphics/pokemon/bruxish/normal.gbapal.lz");
 const u32 gMonPalette_Drampa[] = INCBIN_U32("graphics/pokemon/drampa/normal.gbapal.lz");
 const u32 gMonPalette_Dhelmise[] = INCBIN_U32("graphics/pokemon/dhelmise/normal.gbapal.lz");
-const u32 gMonPalette_Jangmoo[] = INCBIN_U32("graphics/pokemon/jangmo_o/normal.gbapal.lz");
+const u32 gMonPalette_JangmoO[] = INCBIN_U32("graphics/pokemon/jangmo_o/normal.gbapal.lz");
 const u32 gMonPalette_HakamoO[] = INCBIN_U32("graphics/pokemon/hakamo_o/normal.gbapal.lz");
 const u32 gMonPalette_KommoO[] = INCBIN_U32("graphics/pokemon/kommo_o/normal.gbapal.lz");
 const u32 gMonPalette_TapuKoko[] = INCBIN_U32("graphics/pokemon/tapu_koko/normal.gbapal.lz");
@@ -4451,7 +4451,7 @@ const u32 gMonShinyPalette_Mimikyu[] = INCBIN_U32("graphics/pokemon/mimikyu/shin
 const u32 gMonShinyPalette_Bruxish[] = INCBIN_U32("graphics/pokemon/bruxish/shiny.gbapal.lz");
 const u32 gMonShinyPalette_Drampa[] = INCBIN_U32("graphics/pokemon/drampa/shiny.gbapal.lz");
 const u32 gMonShinyPalette_Dhelmise[] = INCBIN_U32("graphics/pokemon/dhelmise/shiny.gbapal.lz");
-const u32 gMonShinyPalette_Jangmoo[] = INCBIN_U32("graphics/pokemon/jangmo_o/shiny.gbapal.lz");
+const u32 gMonShinyPalette_JangmoO[] = INCBIN_U32("graphics/pokemon/jangmo_o/shiny.gbapal.lz");
 const u32 gMonShinyPalette_HakamoO[] = INCBIN_U32("graphics/pokemon/hakamo_o/shiny.gbapal.lz");
 const u32 gMonShinyPalette_KommoO[] = INCBIN_U32("graphics/pokemon/kommo_o/shiny.gbapal.lz");
 const u32 gMonShinyPalette_TapuKoko[] = INCBIN_U32("graphics/pokemon/tapu_koko/shiny.gbapal.lz");
@@ -5678,7 +5678,7 @@ const u8 gMonIcon_Mimikyu[] = INCBIN_U8("graphics/pokemon/mimikyu/icon.4bpp");
 const u8 gMonIcon_Bruxish[] = INCBIN_U8("graphics/pokemon/bruxish/icon.4bpp");
 const u8 gMonIcon_Drampa[] = INCBIN_U8("graphics/pokemon/drampa/icon.4bpp");
 const u8 gMonIcon_Dhelmise[] = INCBIN_U8("graphics/pokemon/dhelmise/icon.4bpp");
-const u8 gMonIcon_Jangmoo[] = INCBIN_U8("graphics/pokemon/jangmo_o/icon.4bpp");
+const u8 gMonIcon_JangmoO[] = INCBIN_U8("graphics/pokemon/jangmo_o/icon.4bpp");
 const u8 gMonIcon_HakamoO[] = INCBIN_U8("graphics/pokemon/hakamo_o/icon.4bpp");
 const u8 gMonIcon_KommoO[] = INCBIN_U8("graphics/pokemon/kommo_o/icon.4bpp");
 const u8 gMonIcon_TapuKoko[] = INCBIN_U8("graphics/pokemon/tapu_koko/icon.4bpp");
diff --git a/src/data/pokemon/level_up_learnset_pointers.h b/src/data/pokemon/level_up_learnset_pointers.h
index d27399d32..9fa91ee23 100644
--- a/src/data/pokemon/level_up_learnset_pointers.h
+++ b/src/data/pokemon/level_up_learnset_pointers.h
@@ -789,7 +789,7 @@ const struct LevelUpMove *const gLevelUpLearnsets[NUM_SPECIES] =
     [SPECIES_BRUXISH] = sBruxishLevelUpLearnset,
     [SPECIES_DRAMPA] = sDrampaLevelUpLearnset,
     [SPECIES_DHELMISE] = sDhelmiseLevelUpLearnset,
-    [SPECIES_JANGMO_O] = sJangmooLevelUpLearnset,
+    [SPECIES_JANGMO_O] = sJangmoOLevelUpLearnset,
     [SPECIES_HAKAMO_O] = sHakamoOLevelUpLearnset,
     [SPECIES_KOMMO_O] = sKommoOLevelUpLearnset,
     [SPECIES_TAPU_KOKO] = sTapuKokoLevelUpLearnset,
diff --git a/src/data/pokemon/level_up_learnsets.h b/src/data/pokemon/level_up_learnsets.h
index bb6d97be9..17af6b888 100644
--- a/src/data/pokemon/level_up_learnsets.h
+++ b/src/data/pokemon/level_up_learnsets.h
@@ -15960,7 +15960,7 @@ static const struct LevelUpMove sDhelmiseLevelUpLearnset[] = {
     LEVEL_UP_END
 };
 
-static const struct LevelUpMove sJangmooLevelUpLearnset[] = {
+static const struct LevelUpMove sJangmoOLevelUpLearnset[] = {
     LEVEL_UP_MOVE( 1, MOVE_TACKLE),
     LEVEL_UP_MOVE( 5, MOVE_LEER),
     LEVEL_UP_MOVE( 9, MOVE_BIDE),
diff --git a/src/data/pokemon/pokedex_entries.h b/src/data/pokemon/pokedex_entries.h
index 7952f44a3..83b58c1d1 100644
--- a/src/data/pokemon/pokedex_entries.h
+++ b/src/data/pokemon/pokedex_entries.h
@@ -9396,7 +9396,7 @@ const struct PokedexEntry gPokedexEntries[] =
         .categoryName = _("Scaly"),
         .height = 6,
         .weight = 297,
-        .description = gJangmooPokedexText,
+        .description = gJangmoOPokedexText,
         .pokemonScale = 356,
         .pokemonOffset = 17,
         .trainerScale = 256,
diff --git a/src/data/pokemon/pokedex_text.h b/src/data/pokemon/pokedex_text.h
index a28bd184e..5e28a204b 100644
--- a/src/data/pokemon/pokedex_text.h
+++ b/src/data/pokemon/pokedex_text.h
@@ -4697,7 +4697,7 @@ const u8 gDhelmisePokedexText[] = _(
     "It maintains itself with new infusions of\n"
     "seabed detritus and seaweed.");
 
-const u8 gJangmooPokedexText[] = _(
+const u8 gJangmoOPokedexText[] = _(
     "It expresses its feelings by smacking its\n"
     "scales. Metallic sounds echo through the\n"
     "tall mountains where Jangmo-o live. They\n"
diff --git a/src/data/pokemon/teachable_learnset_pointers.h b/src/data/pokemon/teachable_learnset_pointers.h
index c8adc8668..31a39d516 100644
--- a/src/data/pokemon/teachable_learnset_pointers.h
+++ b/src/data/pokemon/teachable_learnset_pointers.h
@@ -789,7 +789,7 @@ const u16 *const gTeachableLearnsets[NUM_SPECIES] =
     [SPECIES_BRUXISH] = sBruxishTeachableLearnset,
     [SPECIES_DRAMPA] = sDrampaTeachableLearnset,
     [SPECIES_DHELMISE] = sDhelmiseTeachableLearnset,
-    [SPECIES_JANGMO_O] = sJangmooTeachableLearnset,
+    [SPECIES_JANGMO_O] = sJangmoOTeachableLearnset,
     [SPECIES_HAKAMO_O] = sHakamoOTeachableLearnset,
     [SPECIES_KOMMO_O] = sKommoOTeachableLearnset,
     [SPECIES_TAPU_KOKO] = sTapuKokoTeachableLearnset,
diff --git a/src/data/pokemon/teachable_learnsets.h b/src/data/pokemon/teachable_learnsets.h
index 2130b18a2..6365af3b9 100644
--- a/src/data/pokemon/teachable_learnsets.h
+++ b/src/data/pokemon/teachable_learnsets.h
@@ -29414,7 +29414,7 @@ static const u16 sDhelmiseTeachableLearnset[] = {
     MOVE_UNAVAILABLE,
 };
 
-static const u16 sJangmooTeachableLearnset[] = {
+static const u16 sJangmoOTeachableLearnset[] = {
     MOVE_AERIAL_ACE,
     MOVE_ATTRACT,
     MOVE_BRICK_BREAK,
diff --git a/src/data/pokemon_graphics/back_pic_table.h b/src/data/pokemon_graphics/back_pic_table.h
index c018d8987..29eaeceed 100644
--- a/src/data/pokemon_graphics/back_pic_table.h
+++ b/src/data/pokemon_graphics/back_pic_table.h
@@ -789,7 +789,7 @@ const struct CompressedSpriteSheet gMonBackPicTable[] =
     SPECIES_SPRITE(BRUXISH, gMonBackPic_Bruxish),
     SPECIES_SPRITE(DRAMPA, gMonBackPic_Drampa),
     SPECIES_SPRITE(DHELMISE, gMonBackPic_Dhelmise),
-    SPECIES_SPRITE(JANGMO_O, gMonBackPic_Jangmoo),
+    SPECIES_SPRITE(JANGMO_O, gMonBackPic_JangmoO),
     SPECIES_SPRITE(HAKAMO_O, gMonBackPic_HakamoO),
     SPECIES_SPRITE(KOMMO_O, gMonBackPic_KommoO),
     SPECIES_SPRITE(TAPU_KOKO, gMonBackPic_TapuKoko),
diff --git a/src/data/pokemon_graphics/front_pic_table.h b/src/data/pokemon_graphics/front_pic_table.h
index e346dd4a2..4530963af 100644
--- a/src/data/pokemon_graphics/front_pic_table.h
+++ b/src/data/pokemon_graphics/front_pic_table.h
@@ -789,7 +789,7 @@ const struct CompressedSpriteSheet gMonFrontPicTable[] =
     SPECIES_SPRITE(BRUXISH, gMonFrontPic_Bruxish),
     SPECIES_SPRITE(DRAMPA, gMonFrontPic_Drampa),
     SPECIES_SPRITE(DHELMISE, gMonFrontPic_Dhelmise),
-    SPECIES_SPRITE(JANGMO_O, gMonFrontPic_Jangmoo),
+    SPECIES_SPRITE(JANGMO_O, gMonFrontPic_JangmoO),
     SPECIES_SPRITE(HAKAMO_O, gMonFrontPic_HakamoO),
     SPECIES_SPRITE(KOMMO_O, gMonFrontPic_KommoO),
     SPECIES_SPRITE(TAPU_KOKO, gMonFrontPic_TapuKoko),
diff --git a/src/data/pokemon_graphics/palette_table.h b/src/data/pokemon_graphics/palette_table.h
index 49551333c..7311dfd0b 100644
--- a/src/data/pokemon_graphics/palette_table.h
+++ b/src/data/pokemon_graphics/palette_table.h
@@ -789,7 +789,7 @@ const struct CompressedSpritePalette gMonPaletteTable[] =
     SPECIES_PAL(BRUXISH, gMonPalette_Bruxish),
     SPECIES_PAL(DRAMPA, gMonPalette_Drampa),
     SPECIES_PAL(DHELMISE, gMonPalette_Dhelmise),
-    SPECIES_PAL(JANGMO_O, gMonPalette_Jangmoo),
+    SPECIES_PAL(JANGMO_O, gMonPalette_JangmoO),
     SPECIES_PAL(HAKAMO_O, gMonPalette_HakamoO),
     SPECIES_PAL(KOMMO_O, gMonPalette_KommoO),
     SPECIES_PAL(TAPU_KOKO, gMonPalette_TapuKoko),
diff --git a/src/data/pokemon_graphics/shiny_palette_table.h b/src/data/pokemon_graphics/shiny_palette_table.h
index 0a327b37e..81bc45d4d 100644
--- a/src/data/pokemon_graphics/shiny_palette_table.h
+++ b/src/data/pokemon_graphics/shiny_palette_table.h
@@ -789,7 +789,7 @@ const struct CompressedSpritePalette gMonShinyPaletteTable[] =
     SPECIES_SHINY_PAL(BRUXISH, gMonShinyPalette_Bruxish),
     SPECIES_SHINY_PAL(DRAMPA, gMonShinyPalette_Drampa),
     SPECIES_SHINY_PAL(DHELMISE, gMonShinyPalette_Dhelmise),
-    SPECIES_SHINY_PAL(JANGMO_O, gMonShinyPalette_Jangmoo),
+    SPECIES_SHINY_PAL(JANGMO_O, gMonShinyPalette_JangmoO),
     SPECIES_SHINY_PAL(HAKAMO_O, gMonShinyPalette_HakamoO),
     SPECIES_SHINY_PAL(KOMMO_O, gMonShinyPalette_KommoO),
     SPECIES_SHINY_PAL(TAPU_KOKO, gMonShinyPalette_TapuKoko),
diff --git a/src/pokemon_icon.c b/src/pokemon_icon.c
index 85a69fa93..5e2e8a656 100644
--- a/src/pokemon_icon.c
+++ b/src/pokemon_icon.c
@@ -815,7 +815,7 @@ const u8 *const gMonIconTable[] =
     [SPECIES_BRUXISH] = gMonIcon_Bruxish,
     [SPECIES_DRAMPA] = gMonIcon_Drampa,
     [SPECIES_DHELMISE] = gMonIcon_Dhelmise,
-    [SPECIES_JANGMO_O] = gMonIcon_Jangmoo,
+    [SPECIES_JANGMO_O] = gMonIcon_JangmoO,
     [SPECIES_HAKAMO_O] = gMonIcon_HakamoO,
     [SPECIES_KOMMO_O] = gMonIcon_KommoO,
     [SPECIES_TAPU_KOKO] = gMonIcon_TapuKoko,