diff --git a/recipes/fmt/all/conanfile.py b/recipes/fmt/all/conanfile.py
index 86da321d03862..80324996850fd 100644
--- a/recipes/fmt/all/conanfile.py
+++ b/recipes/fmt/all/conanfile.py
@@ -4,9 +4,10 @@
 from conan.tools.cmake import CMake, CMakeToolchain, cmake_layout
 from conan.tools.files import apply_conandata_patches, copy, export_conandata_patches, get, rmdir
 from conan.tools.layout import basic_layout
-from conan.tools.build import check_min_cppstd
+from conan.tools.build import check_min_cppstd, valid_max_cppstd
 from conan.tools.scm import Version
 from conan.tools.microsoft import is_msvc
+from conan.errors import ConanInvalidConfiguration
 
 required_conan_version = ">=1.53.0"
 
@@ -81,6 +82,14 @@ def package_id(self):
     def validate(self):
         if self.settings.get_safe("compiler.cppstd"):
             check_min_cppstd(self, 11)
+        if Version(self.version).major in (8, 10, 11) and \
+             self.settings.compiler == "clang" and Version(self.settings.compiler.version) >= "20" and \
+             not valid_max_cppstd(self, 20):
+            # INFO: https://github.com/fmtlib/fmt/issues/4177
+            # Partially fixed by: https://github.com/fmtlib/fmt/commit/cacc3108c5b74020dba7bf3c6d3a7e58cdc085b2
+            # Completely fixed by: https://github.com/fmtlib/fmt/pull/4187
+            # TODO: Revisit after be released a new version of fmt
+            raise ConanInvalidConfiguration(f"This version of FMT does not currently support Clang 20 with C++20; please use -s compiler.cppstd=17. See https://github.com/fmtlib/fmt/issues/4177")
 
     def source(self):
         get(self, **self.conan_data["sources"][self.version], strip_root=True)