diff --git a/.gitignore b/.gitignore
index c22d0b2ce4c..9d96ed04a15 100644
--- a/.gitignore
+++ b/.gitignore
@@ -41,3 +41,7 @@ coverage
 
 /dependency-graph.svg
 /.vs
+
+
+# Script outputs
+./*.csv
\ No newline at end of file
diff --git a/scripts/find_sprite_variant_mismatches.py b/scripts/find_sprite_variant_mismatches.py
new file mode 100644
index 00000000000..483695fdb66
--- /dev/null
+++ b/scripts/find_sprite_variant_mismatches.py
@@ -0,0 +1,98 @@
+"""
+Validates the contents of the variant's masterlist file and identifies
+any mismatched entries for the sprite of the same key between front, back, exp, exp back, and female.
+
+This will create a csv file that contains all of the entries with mismatches.
+
+An empty entry means that there was not a mismatch for that version of the sprite (meaning it matches front).
+"""
+
+import sys
+
+if sys.version_info < (3, 7):
+    msg = "This script requires Python 3.7+"
+    raise RuntimeError(msg)
+
+import json
+import os
+import csv
+from dataclasses import dataclass, field
+from typing import Literal as L
+
+MASTERLIST_PATH = os.path.join(
+    os.path.dirname(os.path.dirname(__file__)), "public", "images", "pokemon", "variant", "_masterlist.json"
+)
+DEFAULT_OUTPUT_PATH = "sprite-mismatches.csv"
+
+
+@dataclass(order=True)
+class Sprite:
+    key: str = field(compare=False)
+    front: list[int] = field(default_factory=list, compare=False)
+    back: list[int] = field(default_factory=list, compare=False)
+    female: list[int] = field(default_factory=list, compare=False)
+    exp: list[int] = field(default_factory=list, compare=False)
+    expback: list[int] = field(default_factory=list, compare=False)
+    sortedKey: tuple[int] | tuple[int, str] = field(init=False, repr=False, compare=True)
+
+    def as_row(self) -> tuple[str, list[int] | L[""], list[int] | L[""], list[int] | L[""], list[int] | L[""], list[int] | L[""]]:
+        """return sprite information as a tuple for csv writing"""
+        return (self.key, self.front or "", self.back or "", self.exp or "", self.expback or "", self.female or "")
+
+    def is_mismatch(self) -> bool:
+        """return True if the female, back, or exp sprites do not match the front"""
+        for val in [self.back, self.exp, self.expback, self.female]:
+            if val != [] and val != self.front:
+                return True
+        return False
+
+    def __post_init__(self):
+        split = self.key.split("-", maxsplit=1)
+        self.sortedKey = (int(split[0]), split[1]) if len(split) == 2 else (int(split[0]),)
+
+
+def make_mismatch_sprite_list(path):
+    with open(path, "r") as f:
+        masterlist: dict = json.load(f)
+
+    # Go through the keys in "front" and "back" and make sure they match the masterlist
+    back_data: dict[str, list[int]] = masterlist.pop("back", {})
+    exp_data: dict[str, list[int]] = masterlist.pop("exp", {})
+    exp_back_data: dict[str, list[int]] = exp_data.get("back", [])
+    female_data: dict[str, list[int]] = masterlist.pop("female", {})
+
+    sprites: list[Sprite] = []
+
+    for key, item in masterlist.items():
+        sprite = Sprite(
+            key, front=item, back=back_data.get(key, []), exp=exp_data.get(key, []), expback=exp_back_data.get(key, []), female=female_data.get(key, [])
+        )
+        if sprite.is_mismatch():
+            sprites.append(sprite)
+
+    return sprites
+
+
+def write_mismatch_csv(filename: str, mismatches: list[Sprite]):
+    with open(filename, "w", newline="") as csvfile:
+        writer = csv.writer(csvfile)
+        writer.writerow(["key", "front", "back", "exp", "expback", "female"])
+        for sprite in sorted(mismatches):
+            writer.writerow(sprite.as_row())
+
+
+if __name__ == "__main__":
+    import argparse
+
+    p = argparse.ArgumentParser("find_sprite_variant_mismatches", description=__doc__)
+
+    p.add_argument(
+        "-o",
+        "--output",
+        default=DEFAULT_OUTPUT_PATH,
+        help=f"The path to a file to save the output file. If not specified, will write to {DEFAULT_OUTPUT_PATH}.",
+    )
+    p.add_argument("--masterlist", default=MASTERLIST_PATH, help=f"The path to the masterlist file to validate. Defaults to {MASTERLIST_PATH}.")
+    args = p.parse_args()
+    mismatches = make_mismatch_sprite_list(args.masterlist)
+    write_mismatch_csv(args.output, mismatches)