diff --git a/.gitignore b/.gitignore
index 1e2eea20f17..4c549478df9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,7 +6,7 @@
 /components/brave_sync/extension/brave-sync/
 /components/brave_sync/extension/brave-crypto/
 /components/third_party/adblock/LICENSE
-/components/third_party/local-data/LICENSE
+/components/third_party/local_data/LICENSE
 /dist/
 /out/
 /vendor/*
diff --git a/components/third_party/crypto-wallets/LICENSE b/components/third_party/crypto_wallets/LICENSE
similarity index 100%
rename from components/third_party/crypto-wallets/LICENSE
rename to components/third_party/crypto_wallets/LICENSE
diff --git a/components/third_party/crypto-wallets/README.chromium b/components/third_party/crypto_wallets/README.chromium
similarity index 100%
rename from components/third_party/crypto-wallets/README.chromium
rename to components/third_party/crypto_wallets/README.chromium
diff --git a/components/third_party/https-everywhere/LICENSE b/components/third_party/https_everywhere/LICENSE
similarity index 100%
rename from components/third_party/https-everywhere/LICENSE
rename to components/third_party/https_everywhere/LICENSE
diff --git a/components/third_party/https-everywhere/README.chromium b/components/third_party/https_everywhere/README.chromium
similarity index 100%
rename from components/third_party/https-everywhere/README.chromium
rename to components/third_party/https_everywhere/README.chromium
diff --git a/components/third_party/local-data/README.chromium b/components/third_party/local_data/README.chromium
similarity index 100%
rename from components/third_party/local-data/README.chromium
rename to components/third_party/local_data/README.chromium
diff --git a/components/third_party/local-data/lists/autoplay-whitelist/README.chromium b/components/third_party/local_data/lists/autoplay-whitelist/README.chromium
similarity index 100%
rename from components/third_party/local-data/lists/autoplay-whitelist/README.chromium
rename to components/third_party/local_data/lists/autoplay-whitelist/README.chromium
diff --git a/components/third_party/local-data/lists/extension-whitelist/README.chromium b/components/third_party/local_data/lists/extension-whitelist/README.chromium
similarity index 100%
rename from components/third_party/local-data/lists/extension-whitelist/README.chromium
rename to components/third_party/local_data/lists/extension-whitelist/README.chromium
diff --git a/components/third_party/local-data/lists/greaselion/LICENSE b/components/third_party/local_data/lists/greaselion/LICENSE
similarity index 100%
rename from components/third_party/local-data/lists/greaselion/LICENSE
rename to components/third_party/local_data/lists/greaselion/LICENSE
diff --git a/components/third_party/local-data/lists/greaselion/README.chromium b/components/third_party/local_data/lists/greaselion/README.chromium
similarity index 100%
rename from components/third_party/local-data/lists/greaselion/README.chromium
rename to components/third_party/local_data/lists/greaselion/README.chromium
diff --git a/components/third_party/local-data/lists/referrer-whitelist/README.chromium b/components/third_party/local_data/lists/referrer-whitelist/README.chromium
similarity index 100%
rename from components/third_party/local-data/lists/referrer-whitelist/README.chromium
rename to components/third_party/local_data/lists/referrer-whitelist/README.chromium
diff --git a/components/third_party/local-data/lists/tracking-protection/README.chromium b/components/third_party/local_data/lists/tracking-protection/README.chromium
similarity index 100%
rename from components/third_party/local-data/lists/tracking-protection/README.chromium
rename to components/third_party/local_data/lists/tracking-protection/README.chromium