diff --git a/include/constants/species.h b/include/constants/species.h
index f4151466b..d73e2a5db 100644
--- a/include/constants/species.h
+++ b/include/constants/species.h
@@ -440,7 +440,7 @@
 #define SPECIES_BRONZOR 436
 #define SPECIES_BRONZONG 437
 #define SPECIES_BONSLY 438
-#define SPECIES_MIMEJR 439
+#define SPECIES_MIME_JR 439
 #define SPECIES_HAPPINY 440
 #define SPECIES_CHATOT 441
 #define SPECIES_SPIRITOMB 442
@@ -1791,7 +1791,7 @@
 #define NATIONAL_DEX_BRONZOR 436
 #define NATIONAL_DEX_BRONZONG 437
 #define NATIONAL_DEX_BONSLY 438
-#define NATIONAL_DEX_MIMEJR 439
+#define NATIONAL_DEX_MIME_JR 439
 #define NATIONAL_DEX_HAPPINY 440
 #define NATIONAL_DEX_CHATOT 441
 #define NATIONAL_DEX_SPIRITOMB 442
diff --git a/src/data/pokemon/base_stats.h b/src/data/pokemon/base_stats.h
index 67ddca5dc..3fad49fb1 100644
--- a/src/data/pokemon/base_stats.h
+++ b/src/data/pokemon/base_stats.h
@@ -12408,7 +12408,7 @@ const struct BaseStats gBaseStats[] =
         .noFlip = FALSE,
     },
 
-    [SPECIES_MIMEJR] =
+    [SPECIES_MIME_JR] =
     {
         .baseHP        = 20,
         .baseAttack    = 25,
diff --git a/src/data/pokemon/egg_moves.h b/src/data/pokemon/egg_moves.h
index c00e2fe0a..18853e0c8 100644
--- a/src/data/pokemon/egg_moves.h
+++ b/src/data/pokemon/egg_moves.h
@@ -2678,7 +2678,7 @@ const u16 gEggMoves[] = {
         MOVE_CURSE,
         MOVE_ENDURE),
 
-    egg_moves(MIMEJR,
+    egg_moves(MIME_JR,
         MOVE_FUTURE_SIGHT,
         MOVE_HYPNOSIS,
         MOVE_MIMIC,
diff --git a/src/data/pokemon/evolution.h b/src/data/pokemon/evolution.h
index 1e2f2bf58..9d67f1f17 100644
--- a/src/data/pokemon/evolution.h
+++ b/src/data/pokemon/evolution.h
@@ -286,7 +286,7 @@ const struct Evolution gEvolutionTable[NUM_SPECIES][EVOS_PER_MON] =
     [SPECIES_STUNKY]                = {{EVO_LEVEL, 34, SPECIES_SKUNTANK}},
     [SPECIES_BRONZOR]               = {{EVO_LEVEL, 35, SPECIES_BRONZONG}},
     [SPECIES_BONSLY]                = {{EVO_MOVE, MOVE_MIMIC, SPECIES_SUDOWOODO}},
-    [SPECIES_MIMEJR]                = {{EVO_MOVE, MOVE_MIMIC, SPECIES_MR_MIME}},
+    [SPECIES_MIME_JR]               = {{EVO_MOVE, MOVE_MIMIC, SPECIES_MR_MIME}},
     [SPECIES_HAPPINY]               = {{EVO_ITEM_HOLD_DAY, ITEM_OVAL_STONE, SPECIES_CHANSEY}},
     [SPECIES_GIBLE]                 = {{EVO_LEVEL, 24, SPECIES_GABITE}},
     [SPECIES_GABITE]                = {{EVO_LEVEL, 48, SPECIES_GARCHOMP}},
diff --git a/src/data/pokemon/level_up_learnset_pointers.h b/src/data/pokemon/level_up_learnset_pointers.h
index 721ce3920..8c9f8a194 100644
--- a/src/data/pokemon/level_up_learnset_pointers.h
+++ b/src/data/pokemon/level_up_learnset_pointers.h
@@ -439,7 +439,7 @@ const struct LevelUpMove *const gLevelUpLearnsets[NUM_SPECIES] =
     [SPECIES_BRONZOR] = sBronzorLevelUpLearnset,
     [SPECIES_BRONZONG] = sBronzongLevelUpLearnset,
     [SPECIES_BONSLY] = sBonslyLevelUpLearnset,
-    [SPECIES_MIMEJR] = sMimejrLevelUpLearnset,
+    [SPECIES_MIME_JR] = sMimejrLevelUpLearnset,
     [SPECIES_HAPPINY] = sHappinyLevelUpLearnset,
     [SPECIES_CHATOT] = sChatotLevelUpLearnset,
     [SPECIES_SPIRITOMB] = sSpiritombLevelUpLearnset,
diff --git a/src/data/pokemon/pokedex_entries.h b/src/data/pokemon/pokedex_entries.h
index 9cd0a73b2..d873f1401 100644
--- a/src/data/pokemon/pokedex_entries.h
+++ b/src/data/pokemon/pokedex_entries.h
@@ -5268,7 +5268,7 @@ const struct PokedexEntry gPokedexEntries[] =
         .trainerOffset = 0,
     },
 
-    [NATIONAL_DEX_MIMEJR] =
+    [NATIONAL_DEX_MIME_JR] =
     {
         .categoryName = _("Mime"),
         .height = 6,
diff --git a/src/data/pokemon/pokedex_orders.h b/src/data/pokemon/pokedex_orders.h
index 402e11b53..68b09bf9e 100644
--- a/src/data/pokemon/pokedex_orders.h
+++ b/src/data/pokemon/pokedex_orders.h
@@ -507,7 +507,7 @@ const u16 gPokedexOrder_Alphabetical[] =
     NATIONAL_DEX_MILCERY,
     NATIONAL_DEX_MILOTIC,
     NATIONAL_DEX_MILTANK,
-    NATIONAL_DEX_MIMEJR,
+    NATIONAL_DEX_MIME_JR,
     NATIONAL_DEX_MIMIKYU,
     NATIONAL_DEX_MINCCINO,
     NATIONAL_DEX_MINIOR,
@@ -1248,7 +1248,7 @@ const u16 gPokedexOrder_Weight[] =
     NATIONAL_DEX_MORGREM,
     NATIONAL_DEX_IVYSAUR,
     //NATIONAL_DEX_BANETTE, // Mega
-    NATIONAL_DEX_MIMEJR,
+    NATIONAL_DEX_MIME_JR,
     NATIONAL_DEX_LAMPENT,
     //NATIONAL_DEX_TOGEDEMARU, // Totem-sized
     NATIONAL_DEX_BLACEPHALON,
@@ -2260,7 +2260,7 @@ const u16 gPokedexOrder_Height[] =
     NATIONAL_DEX_BAGON,
     NATIONAL_DEX_BELDUM,
     NATIONAL_DEX_STARAVIA,
-    NATIONAL_DEX_MIMEJR,
+    NATIONAL_DEX_MIME_JR,
     NATIONAL_DEX_HAPPINY,
     NATIONAL_DEX_MUNCHLAX,
     NATIONAL_DEX_SNIVY,
diff --git a/src/data/pokemon/tmhm_learnsets.h b/src/data/pokemon/tmhm_learnsets.h
index 6013a93f0..f50c7d3f4 100644
--- a/src/data/pokemon/tmhm_learnsets.h
+++ b/src/data/pokemon/tmhm_learnsets.h
@@ -10829,7 +10829,7 @@ const u32 gTMHMLearnsets[][2] =
                                             | TMHM(TM46_THIEF)
                                             | TMHM(TM06_TOXIC)),
 
-    [SPECIES_MIMEJR]      = TMHM_LEARNSET(TMHM(TM45_ATTRACT)
+    [SPECIES_MIME_JR]      = TMHM_LEARNSET(TMHM(TM45_ATTRACT)
                                             | TMHM(TM31_BRICK_BREAK)
                                             | TMHM(TM04_CALM_MIND)
                                             | TMHM(TM32_DOUBLE_TEAM)
diff --git a/src/data/pokemon/tutor_learnsets.h b/src/data/pokemon/tutor_learnsets.h
index 712932b7e..f450b206e 100644
--- a/src/data/pokemon/tutor_learnsets.h
+++ b/src/data/pokemon/tutor_learnsets.h
@@ -6438,7 +6438,7 @@ static const u32 sTutorLearnsets[] =
                                             | TUTOR(MOVE_SUBSTITUTE)
                                             | TUTOR(MOVE_SWAGGER)),
 
-    [SPECIES_MIMEJR]        = TUTOR_LEARNSET(TUTOR(MOVE_DREAM_EATER)
+    [SPECIES_MIME_JR]        = TUTOR_LEARNSET(TUTOR(MOVE_DREAM_EATER)
                                             | TUTOR(MOVE_ENDURE)
                                             | TUTOR(MOVE_ICY_WIND)
                                             | TUTOR(MOVE_MIMIC)
diff --git a/src/data/pokemon_graphics/back_pic_coordinates.h b/src/data/pokemon_graphics/back_pic_coordinates.h
index 840b5caaf..540b44a12 100644
--- a/src/data/pokemon_graphics/back_pic_coordinates.h
+++ b/src/data/pokemon_graphics/back_pic_coordinates.h
@@ -2195,7 +2195,7 @@ const struct MonCoords gMonBackPicCoords[] =
         .size = 0x58,
         .y_offset = 6,
     },
-    [SPECIES_MIMEJR] =
+    [SPECIES_MIME_JR] =
     {
         .size = 0x88,
         .y_offset = 1,
diff --git a/src/data/pokemon_graphics/back_pic_table.h b/src/data/pokemon_graphics/back_pic_table.h
index 4c8c48522..5f79ce149 100644
--- a/src/data/pokemon_graphics/back_pic_table.h
+++ b/src/data/pokemon_graphics/back_pic_table.h
@@ -439,7 +439,7 @@ const struct CompressedSpriteSheet gMonBackPicTable[] =
     SPECIES_SPRITE(BRONZOR, gMonBackPic_Bronzor),
     SPECIES_SPRITE(BRONZONG, gMonBackPic_Bronzong),
     SPECIES_SPRITE(BONSLY, gMonBackPic_Bonsly),
-    SPECIES_SPRITE(MIMEJR, gMonBackPic_Mimejr),
+    SPECIES_SPRITE(MIME_JR, gMonBackPic_Mimejr),
     SPECIES_SPRITE(HAPPINY, gMonBackPic_Happiny),
     SPECIES_SPRITE(CHATOT, gMonBackPic_Chatot),
     SPECIES_SPRITE(SPIRITOMB, gMonBackPic_Spiritomb),
diff --git a/src/data/pokemon_graphics/footprint_table.h b/src/data/pokemon_graphics/footprint_table.h
index da132bbf3..aec82a15b 100644
--- a/src/data/pokemon_graphics/footprint_table.h
+++ b/src/data/pokemon_graphics/footprint_table.h
@@ -439,7 +439,7 @@ const u8 *const gMonFootprintTable[] =
     [SPECIES_BRONZOR] = gMonFootprint_Bronzor,
     [SPECIES_BRONZONG] = gMonFootprint_Bronzong,
     [SPECIES_BONSLY] = gMonFootprint_Bonsly,
-    [SPECIES_MIMEJR] = gMonFootprint_MimeJr,
+    [SPECIES_MIME_JR] = gMonFootprint_MimeJr,
     [SPECIES_HAPPINY] = gMonFootprint_Happiny,
     [SPECIES_CHATOT] = gMonFootprint_Chatot,
     [SPECIES_SPIRITOMB] = gMonFootprint_Spiritomb,
diff --git a/src/data/pokemon_graphics/front_pic_anims.h b/src/data/pokemon_graphics/front_pic_anims.h
index 9f5ae7cbd..b79ae0e61 100644
--- a/src/data/pokemon_graphics/front_pic_anims.h
+++ b/src/data/pokemon_graphics/front_pic_anims.h
@@ -5256,7 +5256,7 @@ static const union AnimCmd sAnim_BONSLY_1[] =
     ANIMCMD_END,
 };
 
-static const union AnimCmd sAnim_MIMEJR_1[] =
+static const union AnimCmd sAnim_MIME_JR_1[] =
 {
     ANIMCMD_FRAME(0, 10),
     ANIMCMD_FRAME(1, 10),
@@ -11526,9 +11526,9 @@ static const union AnimCmd *const sAnims_BONSLY[] ={
     sAnim_BONSLY_1,
 };
 
-static const union AnimCmd *const sAnims_MIMEJR[] ={
+static const union AnimCmd *const sAnims_MIME_JR[] ={
     sAnim_GeneralFrame0,
-    sAnim_MIMEJR_1,
+    sAnim_MIME_JR_1,
 };
 
 static const union AnimCmd *const sAnims_HAPPINY[] ={
@@ -14843,7 +14843,7 @@ const union AnimCmd *const *const gMonFrontAnimsPtrTable[] =
     ANIM_CMD(BRONZOR),
     ANIM_CMD(BRONZONG),
     ANIM_CMD(BONSLY),
-    ANIM_CMD(MIMEJR),
+    ANIM_CMD(MIME_JR),
     ANIM_CMD(HAPPINY),
     ANIM_CMD(CHATOT),
     ANIM_CMD(SPIRITOMB),
diff --git a/src/data/pokemon_graphics/front_pic_coordinates.h b/src/data/pokemon_graphics/front_pic_coordinates.h
index f3373ce35..c3ad1ac45 100644
--- a/src/data/pokemon_graphics/front_pic_coordinates.h
+++ b/src/data/pokemon_graphics/front_pic_coordinates.h
@@ -2195,7 +2195,7 @@ const struct MonCoords gMonFrontPicCoords[] =
         .size = 0x55,
         .y_offset = 9,
     },
-    [SPECIES_MIMEJR] =
+    [SPECIES_MIME_JR] =
     {
         .size = 0x77,
         .y_offset = 9,
diff --git a/src/data/pokemon_graphics/front_pic_table.h b/src/data/pokemon_graphics/front_pic_table.h
index ddb907952..8ae5fc9ec 100644
--- a/src/data/pokemon_graphics/front_pic_table.h
+++ b/src/data/pokemon_graphics/front_pic_table.h
@@ -439,7 +439,7 @@ const struct CompressedSpriteSheet gMonFrontPicTable[] =
     SPECIES_SPRITE(BRONZOR, gMonFrontPic_Bronzor),
     SPECIES_SPRITE(BRONZONG, gMonFrontPic_Bronzong),
     SPECIES_SPRITE(BONSLY, gMonFrontPic_Bonsly),
-    SPECIES_SPRITE(MIMEJR, gMonFrontPic_Mimejr),
+    SPECIES_SPRITE(MIME_JR, gMonFrontPic_Mimejr),
     SPECIES_SPRITE(HAPPINY, gMonFrontPic_Happiny),
     SPECIES_SPRITE(CHATOT, gMonFrontPic_Chatot),
     SPECIES_SPRITE(SPIRITOMB, gMonFrontPic_Spiritomb),
diff --git a/src/data/pokemon_graphics/palette_table.h b/src/data/pokemon_graphics/palette_table.h
index 0e202b5c2..3ccb072ca 100644
--- a/src/data/pokemon_graphics/palette_table.h
+++ b/src/data/pokemon_graphics/palette_table.h
@@ -439,7 +439,7 @@ const struct CompressedSpritePalette gMonPaletteTable[] =
     SPECIES_PAL(BRONZOR, gMonPalette_Bronzor),
     SPECIES_PAL(BRONZONG, gMonPalette_Bronzong),
     SPECIES_PAL(BONSLY, gMonPalette_Bonsly),
-    SPECIES_PAL(MIMEJR, gMonPalette_Mimejr),
+    SPECIES_PAL(MIME_JR, gMonPalette_Mimejr),
     SPECIES_PAL(HAPPINY, gMonPalette_Happiny),
     SPECIES_PAL(CHATOT, gMonPalette_Chatot),
     SPECIES_PAL(SPIRITOMB, gMonPalette_Spiritomb),
diff --git a/src/data/pokemon_graphics/shiny_palette_table.h b/src/data/pokemon_graphics/shiny_palette_table.h
index 180fc7c00..93bfe33b7 100644
--- a/src/data/pokemon_graphics/shiny_palette_table.h
+++ b/src/data/pokemon_graphics/shiny_palette_table.h
@@ -439,7 +439,7 @@ const struct CompressedSpritePalette gMonShinyPaletteTable[] =
     SPECIES_SHINY_PAL(BRONZOR, gMonShinyPalette_Bronzor),
     SPECIES_SHINY_PAL(BRONZONG, gMonShinyPalette_Bronzong),
     SPECIES_SHINY_PAL(BONSLY, gMonShinyPalette_Bonsly),
-    SPECIES_SHINY_PAL(MIMEJR, gMonShinyPalette_Mimejr),
+    SPECIES_SHINY_PAL(MIME_JR, gMonShinyPalette_Mimejr),
     SPECIES_SHINY_PAL(HAPPINY, gMonShinyPalette_Happiny),
     SPECIES_SHINY_PAL(CHATOT, gMonShinyPalette_Chatot),
     SPECIES_SHINY_PAL(SPIRITOMB, gMonShinyPalette_Spiritomb),
diff --git a/src/data/text/species_names.h b/src/data/text/species_names.h
index d51f76ae2..26677bcca 100644
--- a/src/data/text/species_names.h
+++ b/src/data/text/species_names.h
@@ -438,7 +438,7 @@ const u8 gSpeciesNames[][POKEMON_NAME_LENGTH + 1] = {
     [SPECIES_BRONZOR] = _("Bronzor"),
     [SPECIES_BRONZONG] = _("Bronzong"),
     [SPECIES_BONSLY] = _("Bonsly"),
-    [SPECIES_MIMEJR] = _("Mime jr."),
+    [SPECIES_MIME_JR] = _("Mime jr."),
     [SPECIES_HAPPINY] = _("Happiny"),
     [SPECIES_CHATOT] = _("Chatot"),
     [SPECIES_SPIRITOMB] = _("Spiritomb"),
diff --git a/src/pokemon.c b/src/pokemon.c
index 1f6fc9832..517725c34 100644
--- a/src/pokemon.c
+++ b/src/pokemon.c
@@ -751,7 +751,7 @@ const u16 gSpeciesToNationalPokedexNum[NUM_SPECIES] = // Assigns all species to
     SPECIES_TO_NATIONAL(BRONZOR),
     SPECIES_TO_NATIONAL(BRONZONG),
     SPECIES_TO_NATIONAL(BONSLY),
-    SPECIES_TO_NATIONAL(MIMEJR),
+    SPECIES_TO_NATIONAL(MIME_JR),
     SPECIES_TO_NATIONAL(HAPPINY),
     SPECIES_TO_NATIONAL(CHATOT),
     SPECIES_TO_NATIONAL(SPIRITOMB),
@@ -2293,7 +2293,7 @@ static const u8 sMonFrontAnimIdsTable[NUM_SPECIES - 1] =
     [SPECIES_BRONZOR - 1] = 0x4E,
     [SPECIES_BRONZONG - 1] = 0x51,
     [SPECIES_BONSLY - 1] = 0x52,
-    [SPECIES_MIMEJR - 1] = 0x40,
+    [SPECIES_MIME_JR - 1] = 0x40,
     [SPECIES_HAPPINY - 1] = 0x45,
     [SPECIES_CHATOT - 1] = 0x19,
     [SPECIES_SPIRITOMB - 1] = 0x3A,
diff --git a/src/pokemon_icon.c b/src/pokemon_icon.c
index d3c75bb1b..81a204075 100644
--- a/src/pokemon_icon.c
+++ b/src/pokemon_icon.c
@@ -464,7 +464,7 @@ const u8 *const gMonIconTable[] =
     [SPECIES_BRONZOR] = gMonIcon_Bronzor,
     [SPECIES_BRONZONG] = gMonIcon_Bronzong,
     [SPECIES_BONSLY] = gMonIcon_Bonsly,
-    [SPECIES_MIMEJR] = gMonIcon_Mimejr,
+    [SPECIES_MIME_JR] = gMonIcon_Mimejr,
     [SPECIES_HAPPINY] = gMonIcon_Happiny,
     [SPECIES_CHATOT] = gMonIcon_Chatot,
     [SPECIES_SPIRITOMB] = gMonIcon_Spiritomb,
@@ -1680,7 +1680,7 @@ const u8 gMonIconPaletteIndices[] =
     [SPECIES_BRONZOR] = 0,
     [SPECIES_BRONZONG] = 0,
     [SPECIES_BONSLY] = 1,
-    [SPECIES_MIMEJR] = 0,
+    [SPECIES_MIME_JR] = 0,
     [SPECIES_HAPPINY] = 0,
     [SPECIES_CHATOT] = 0,
     [SPECIES_SPIRITOMB] = 5,