diff --git a/mlir/include/mlir-c/IR.h b/mlir/include/mlir-c/IR.h
--- a/mlir/include/mlir-c/IR.h
+++ b/mlir/include/mlir-c/IR.h
@@ -675,6 +675,19 @@
 MLIR_CAPI_EXPORTED void
 mlirValuePrint(MlirValue value, MlirStringCallback callback, void *userData);
 
+/// Replace all uses of 'this' value with the new value, updating anything in
+/// the IR that uses 'this' to use the other value instead.  When this returns
+/// there are zero uses of 'this'.
+MLIR_CAPI_EXPORTED void mlirValueReplaceAllUsesWith(MlirValue value,
+                                                    MlirValue newValue);
+
+/// Replace all uses of 'this' value with 'newValue', updating anything in the
+/// IR that uses 'this' to use the other value instead except if the user is
+/// listed in 'exceptions' .
+MLIR_CAPI_EXPORTED void mlirValueReplaceAllUsesExcept(MlirValue value,
+                                                      MlirValue newValue,
+                                                      MlirOperation except);
+
 //===----------------------------------------------------------------------===//
 // Type API.
 //===----------------------------------------------------------------------===//
diff --git a/mlir/lib/Bindings/Python/IRCore.cpp b/mlir/lib/Bindings/Python/IRCore.cpp
--- a/mlir/lib/Bindings/Python/IRCore.cpp
+++ b/mlir/lib/Bindings/Python/IRCore.cpp
@@ -3103,10 +3103,22 @@
             return printAccum.join();
           },
           kValueDunderStrDocstring)
-      .def_property_readonly("type", [](PyValue &self) {
-        return PyType(self.getParentOperation()->getContext(),
-                      mlirValueGetType(self.get()));
-      });
+      .def_property_readonly("type",
+                             [](PyValue &self) {
+                               return PyType(
+                                   self.getParentOperation()->getContext(),
+                                   mlirValueGetType(self.get()));
+                             })
+      .def("replace_all_uses_with",
+           [](PyValue &self, PyValue &newValue) {
+             mlirValueReplaceAllUsesWith(self.get(), newValue.get());
+           })
+      .def("replace_all_uses_except",
+           [](PyValue &self, PyValue &newValue, PyOperation &operation) {
+             mlirValueReplaceAllUsesExcept(self.get(), newValue.get(),
+                                           operation.get());
+           });
+
   PyBlockArgument::bind(m);
   PyOpResult::bind(m);
 
diff --git a/mlir/lib/CAPI/IR/IR.cpp b/mlir/lib/CAPI/IR/IR.cpp
--- a/mlir/lib/CAPI/IR/IR.cpp
+++ b/mlir/lib/CAPI/IR/IR.cpp
@@ -708,6 +708,15 @@
   unwrap(value).print(stream);
 }
 
+void mlirValueReplaceAllUsesWith(MlirValue value, MlirValue newValue) {
+  unwrap(value).replaceAllUsesWith(unwrap(newValue));
+}
+
+void mlirValueReplaceAllUsesExcept(MlirValue value, MlirValue newValue,
+                                   MlirOperation except) {
+  unwrap(value).replaceAllUsesExcept(unwrap(newValue), unwrap(except));
+}
+
 //===----------------------------------------------------------------------===//
 // Type API.
 //===----------------------------------------------------------------------===//