diff --git a/Ast/include/Luau/Lexer.h b/Ast/include/Luau/Lexer.h
index 8519ca82..b91879c6 100644
--- a/Ast/include/Luau/Lexer.h
+++ b/Ast/include/Luau/Lexer.h
@@ -84,6 +84,9 @@ struct Lexeme
         BrokenString,
         BrokenComment,
         BrokenUnicode,
+
+        BrokenInterpDoubleBrace,
+
         Error,
 
         Reserved_BEGIN,
diff --git a/Ast/src/Lexer.cpp b/Ast/src/Lexer.cpp
index b310c976..19c70708 100644
--- a/Ast/src/Lexer.cpp
+++ b/Ast/src/Lexer.cpp
@@ -184,6 +184,9 @@ std::string Lexeme::toString() const
     case BrokenComment:
         return "unfinished comment";
 
+    case BrokenInterpDoubleBrace:
+        return "'{{', which is invalid (did you mean '\\{'?)";
+
     case BrokenUnicode:
         if (codepoint)
         {
@@ -653,6 +656,11 @@ std::optional<Lexeme> Lexer::readInterpolatedStringSection(Position start, Lexem
 
         case '{':
         {
+            if (peekch(1) == '{')
+            {
+                return std::optional(Lexeme(Location(start, position()), Lexeme::BrokenInterpDoubleBrace));
+            }
+
             incrementInterpolatedStringDepth();
             auto lexemeOutput = Lexeme(Location(start, position()), Lexeme::InterpStringBegin, &buffer[startOffset], offset - startOffset);
             consume();
diff --git a/Ast/src/Parser.cpp b/Ast/src/Parser.cpp
index 1c0027f3..43865e4e 100644
--- a/Ast/src/Parser.cpp
+++ b/Ast/src/Parser.cpp
@@ -2676,9 +2676,13 @@ AstExpr* Parser::parseInterpString()
         lexer.decrementInterpolatedStringDepth();
 
         auto next = lexer.nextInterpolatedString();
-        if (next.type == Lexeme::BrokenString)
+
+        switch (next.type)
         {
+        case Lexeme::BrokenString:
             return reportExprError(location, {}, "Malformed interpolated string");
+        case Lexeme::BrokenInterpDoubleBrace:
+            return reportExprError(location, {}, "Double braces are not permitted within interpolated strings. Did you mean '\\{'?");
         }
     } while (true);
 }
diff --git a/tests/Parser.test.cpp b/tests/Parser.test.cpp
index 844c588c..1ec5314b 100644
--- a/tests/Parser.test.cpp
+++ b/tests/Parser.test.cpp
@@ -1034,7 +1034,7 @@ TEST_CASE_FIXTURE(Fixture, "parse_compound_assignment_error_multiple")
     }
 }
 
-TEST_CASE_FIXTURE(Fixture, "parse_interpolated_string_double_brace")
+TEST_CASE_FIXTURE(Fixture, "parse_interpolated_string_double_brace_begin")
 {
     try
     {
@@ -1045,7 +1045,23 @@ TEST_CASE_FIXTURE(Fixture, "parse_interpolated_string_double_brace")
     }
     catch (const ParseErrors& e)
     {
-        CHECK_EQ("INTERP TODO: Message", e.getErrors().front().getMessage());
+        CHECK_EQ("Expected identifier when parsing expression, got '{{', which is invalid (did you mean '\\{'?)", e.getErrors().front().getMessage());
+    }
+}
+
+TEST_CASE_FIXTURE(Fixture, "parse_interpolated_string_double_brace_mid")
+{
+    try
+    {
+        parse(R"(
+            _ = `{nice} {{oops}}`
+        )");
+        FAIL("Expected ParseErrors to be thrown");
+    }
+    catch (const ParseErrors& e)
+    {
+        // INTERP CODE REVIEW: It's weird for these two to have separate messages, but the one created by _begin is emergent from something else.
+        CHECK_EQ("Double braces are not permitted within interpolated strings. Did you mean '\\{'?", e.getErrors().front().getMessage());
     }
 }