diff --git a/impeller/compiler/switches_unittests.cc b/impeller/compiler/switches_unittests.cc
index b86efe30403fe..92b03ecc2a1fe 100644
--- a/impeller/compiler/switches_unittests.cc
+++ b/impeller/compiler/switches_unittests.cc
@@ -69,6 +69,17 @@ TEST(SwitchesTest, EntryPointCanBeSetForHLSL) {
   ASSERT_EQ(switches.entry_point, "CustomEntryPoint");
 }
 
+TEST(SwitchesTEst, ConvertToEntrypointName) {
+  ASSERT_EQ(ConvertToEntrypointName("mandelbrot_unrolled"),
+            "mandelbrot_unrolled");
+  ASSERT_EQ(ConvertToEntrypointName("mandelbrot-unrolled"),
+            "mandelbrotunrolled");
+  ASSERT_EQ(ConvertToEntrypointName("7_"), "i_7_");
+  ASSERT_EQ(ConvertToEntrypointName("415"), "i_415");
+  ASSERT_EQ(ConvertToEntrypointName("#$%"), "i_");
+  ASSERT_EQ(ConvertToEntrypointName(""), "");
+}
+
 }  // namespace testing
 }  // namespace compiler
 }  // namespace impeller
diff --git a/impeller/compiler/types.cc b/impeller/compiler/types.cc
index 08b4eb9b14c7a..678f66f4d6d5b 100644
--- a/impeller/compiler/types.cc
+++ b/impeller/compiler/types.cc
@@ -96,7 +96,7 @@ std::string EntryPointFunctionNameFromSourceName(
 
   std::stringstream stream;
   std::filesystem::path file_path(file_name);
-  stream << Utf8FromPath(file_path.stem()) << "_";
+  stream << ConvertToEntrypointName(Utf8FromPath(file_path.stem())) << "_";
   switch (type) {
     case SourceType::kUnknown:
       stream << "unknown";
diff --git a/impeller/compiler/utilities.cc b/impeller/compiler/utilities.cc
index 50dd3192f23d4..009a19e17a7ea 100644
--- a/impeller/compiler/utilities.cc
+++ b/impeller/compiler/utilities.cc
@@ -43,5 +43,23 @@ std::string ConvertToCamelCase(std::string_view string) {
   return stream.str();
 }
 
+std::string ConvertToEntrypointName(std::string_view string) {
+  if (string.empty()) {
+    return "";
+  }
+  std::stringstream stream;
+  // Append a prefix if the first character is not a letter.
+  if (!std::isalpha(string.data()[0])) {
+    stream << "i_";
+  }
+  for (size_t i = 0, count = string.length(); i < count; i++) {
+    auto ch = string.data()[i];
+    if (std::isalnum(ch) || ch == '_') {
+      stream << ch;
+    }
+  }
+  return stream.str();
+}
+
 }  // namespace compiler
 }  // namespace impeller
diff --git a/impeller/compiler/utilities.h b/impeller/compiler/utilities.h
index 61af436a87401..cad562d73c34a 100644
--- a/impeller/compiler/utilities.h
+++ b/impeller/compiler/utilities.h
@@ -25,5 +25,9 @@ std::string InferShaderNameFromPath(std::string_view path);
 
 std::string ConvertToCamelCase(std::string_view string);
 
+/// @brief  Ensure that the entrypoint name is a valid identifier in the target
+///         language.
+std::string ConvertToEntrypointName(std::string_view string);
+
 }  // namespace compiler
 }  // namespace impeller