diff --git a/cli/tools/coverage/mod.rs b/cli/tools/coverage/mod.rs
index ff843e602304dd..bc8ae47c6b1e94 100644
--- a/cli/tools/coverage/mod.rs
+++ b/cli/tools/coverage/mod.rs
@@ -712,11 +712,18 @@ fn filter_coverages(
           .ok()
           .map(|url| in_npm_pkg_checker.in_npm_package(&url))
           .unwrap_or(false);
+      if is_internal {
+        return false;
+      }
 
-      let is_included = include.iter().any(|p| p.is_match(&e.url));
-      let is_excluded = exclude.iter().any(|p| p.is_match(&e.url));
-
-      (include.is_empty() || is_included) && !is_excluded && !is_internal
+      // Script URLs are percent-encoded, so a file whose path holds a space
+      // or a non-ASCII character appears in the URL as escapes. A pattern
+      // matches when it matches either the URL or its decoded form.
+      let decoded_url =
+        percent_encoding::percent_decode_str(&e.url).decode_utf8_lossy();
+      let matches = |p: &Regex| p.is_match(&e.url) || p.is_match(&decoded_url);
+      (include.is_empty() || include.iter().any(matches))
+        && !exclude.iter().any(matches)
     })
     .collect::<Vec<cdp::ScriptCoverage>>()
 }
diff --git a/tests/specs/coverage/filter_non_ascii_path/__test__.jsonc b/tests/specs/coverage/filter_non_ascii_path/__test__.jsonc
new file mode 100644
index 00000000000000..c8cf6f0c479d7a
--- /dev/null
+++ b/tests/specs/coverage/filter_non_ascii_path/__test__.jsonc
@@ -0,0 +1,27 @@
+{
+  "tempDir": true,
+  "steps": [
+    {
+      "args": "test --coverage=cov test.ts",
+      "output": "[WILDCARD]1 passed[WILDCARD]"
+    },
+    {
+      // This step and the next spell the directory as the file system
+      // does. The last two steps spell it with the escapes its URL uses.
+      "args": ["coverage", "cov", "--include=wt 🦆"],
+      "output": "included.out"
+    },
+    {
+      "args": ["coverage", "cov", "--exclude=wt 🦆"],
+      "output": "excluded.out"
+    },
+    {
+      "args": ["coverage", "cov", "--include=wt%20%F0%9F%A6%86"],
+      "output": "included.out"
+    },
+    {
+      "args": ["coverage", "cov", "--exclude=wt%20%F0%9F%A6%86"],
+      "output": "excluded.out"
+    }
+  ]
+}
diff --git a/tests/specs/coverage/filter_non_ascii_path/excluded.out b/tests/specs/coverage/filter_non_ascii_path/excluded.out
new file mode 100644
index 00000000000000..44b34457133b11
--- /dev/null
+++ b/tests/specs/coverage/filter_non_ascii_path/excluded.out
@@ -0,0 +1,4 @@
+| File [WILDLINE]
+| ----[WILDLINE]
+| plain.ts [WILDLINE]
+| All files [WILDLINE]
diff --git a/tests/specs/coverage/filter_non_ascii_path/included.out b/tests/specs/coverage/filter_non_ascii_path/included.out
new file mode 100644
index 00000000000000..8a91b070c5fb96
--- /dev/null
+++ b/tests/specs/coverage/filter_non_ascii_path/included.out
@@ -0,0 +1,4 @@
+| File [WILDLINE]
+| ----[WILDLINE]
+| duck.ts [WILDLINE]
+| All files [WILDLINE]
diff --git a/tests/specs/coverage/filter_non_ascii_path/plain/plain.ts b/tests/specs/coverage/filter_non_ascii_path/plain/plain.ts
new file mode 100644
index 00000000000000..8d17f048bd2b4f
--- /dev/null
+++ b/tests/specs/coverage/filter_non_ascii_path/plain/plain.ts
@@ -0,0 +1,3 @@
+export function f(): number {
+  return 1;
+}
diff --git a/tests/specs/coverage/filter_non_ascii_path/test.ts b/tests/specs/coverage/filter_non_ascii_path/test.ts
new file mode 100644
index 00000000000000..5f3d0008c57aec
--- /dev/null
+++ b/tests/specs/coverage/filter_non_ascii_path/test.ts
@@ -0,0 +1,7 @@
+import { f as g } from "./plain/plain.ts";
+import { f } from "./wt 🦆/duck.ts";
+
+Deno.test("test", () => {
+  f();
+  g();
+});
diff --git "a/tests/specs/coverage/filter_non_ascii_path/wt \360\237\246\206/duck.ts" "b/tests/specs/coverage/filter_non_ascii_path/wt \360\237\246\206/duck.ts"
new file mode 100644
index 00000000000000..8d17f048bd2b4f
--- /dev/null
+++ "b/tests/specs/coverage/filter_non_ascii_path/wt \360\237\246\206/duck.ts"	
@@ -0,0 +1,3 @@
+export function f(): number {
+  return 1;
+}