diff --git a/libs/libnamemanager/src/io/module_name_map_xml_constants.h b/libs/libnamemanager/src/io/module_name_map_xml_constants.h
new file mode 100644
index 000000000..ae8e02338
--- /dev/null
+++ b/libs/libnamemanager/src/io/module_name_map_xml_constants.h
@@ -0,0 +1,11 @@
+#ifndef MODULE_NAME_MAP_XML_CONSTANTS_H
+#define MODULE_NAME_MAP_XML_CONSTANTS_H
+
+/* Constants required by XML parser */
+
+constexpr const char* XML_MODULE_NAMES_ROOT_NAME = "module_names";
+constexpr const char* XML_MODULE_NAME_NODE_NAME = "module_name";
+constexpr const char* XML_MODULE_NAME_ATTRIBUTE_DEFAULT = "default";
+constexpr const char* XML_MODULE_NAME_ATTRIBUTE_GIVEN = "given";
+
+#endif
diff --git a/libs/libnamemanager/src/io/read_xml_module_name_map.cpp b/libs/libnamemanager/src/io/read_xml_module_name_map.cpp
new file mode 100644
index 000000000..3b93a543e
--- /dev/null
+++ b/libs/libnamemanager/src/io/read_xml_module_name_map.cpp
@@ -0,0 +1,77 @@
+/********************************************************************
+ * This file includes the top-level function of this library
+ * which reads an XML of clock network file to the associated
+ * data structures
+ *******************************************************************/
+#include <string>
+
+/* Headers from pugi XML library */
+#include "pugixml.hpp"
+#include "pugixml_util.hpp"
+
+/* Headers from vtr util library */
+#include "vtr_assert.h"
+#include "vtr_log.h"
+#include "vtr_time.h"
+
+/* Headers from libarchfpga */
+#include "arch_error.h"
+#include "command_exit_codes.h"
+#include "module_name_map_xml_constants.h"
+#include "read_xml_module_name_map.h"
+#include "read_xml_util.h"
+
+namespace openfpga {  // Begin namespace openfpga
+
+/********************************************************************
+ * Parse XML codes of a <port> to an object of I/O naming
+ *******************************************************************/
+static int read_xml_module_name_binding(pugi::xml_node& xml_binding,
+                                const pugiutil::loc_data& loc_data,
+                                ModuleNameMap& module_name_map) {
+  std::string default_name =
+    get_attribute(xml_port, XML_MODULE_NAME_ATTRIBUTE_DEFAULT, loc_data)
+      .as_string();
+  std::string given_name =
+    get_attribute(xml_port, XML_MODULE_NAME_ATTRIBUTE_GIVEN, loc_data)
+      .as_string();
+
+  return module_name_map.set_tag_to_name_pair(default_name, given_name);
+}
+
+/********************************************************************
+ * Parse XML codes about <ports> to an object of ClockNetwork
+ *******************************************************************/
+int read_xml_module_name_map(const char* fname, ModuleNameMap& module_name_map) {
+  vtr::ScopedStartFinishTimer timer("Read module rename rules");
+
+  int status = CMD_EXEC_SUCCESS;
+
+  /* Parse the file */
+  pugi::xml_document doc;
+  pugiutil::loc_data loc_data;
+
+  try {
+    loc_data = pugiutil::load_xml(doc, fname);
+
+    pugi::xml_node xml_root =
+      get_single_child(doc, XML_MODULE_NAMES_ROOT_NAME, loc_data);
+
+    for (pugi::xml_node xml_binding : xml_root.children()) {
+      /* Error out if the XML child has an invalid name! */
+      if (xml_binding.name() != std::string(XML_MODULE_NAME_NODE_NAME)) {
+        bad_tag(xml_binding, loc_data, xml_root, {XML_MODULE_NAME_NODE_NAME});
+      }
+      status = read_xml_module_name_binding(xml_binding, loc_data, module_name_map);
+      if (status != CMD_EXEC_SUCCESS) {
+        return CMD_EXEC_FATAL_ERROR;
+      }
+    }
+  } catch (pugiutil::XmlError& e) {
+    archfpga_throw(fname, e.line(), "%s", e.what());
+  }
+
+  return status;
+}
+
+}  // End of namespace openfpga
diff --git a/libs/libnamemanager/src/io/read_xml_module_name_map.h b/libs/libnamemanager/src/io/read_xml_module_name_map.h
new file mode 100644
index 000000000..140c752dd
--- /dev/null
+++ b/libs/libnamemanager/src/io/read_xml_module_name_map.h
@@ -0,0 +1,21 @@
+#ifndef READ_XML_MODULE_NAME_MAP_H
+#define READ_XML_MODULE_NAME_MAP_H
+
+/********************************************************************
+ * Include header files that are required by function declaration
+ *******************************************************************/
+#include "module_name_map.h"
+#include "pugixml.hpp"
+#include "pugixml_util.hpp"
+
+/********************************************************************
+ * Function declaration
+ *******************************************************************/
+
+namespace openfpga {  // Begin namespace openfpga
+
+int read_xml_module_name_map(const char* fname, ModuleNameMap& module_name_map);
+
+}  // End of namespace openfpga
+
+#endif
diff --git a/libs/libnamemanager/src/io/write_xml_module_name_map.h b/libs/libnamemanager/src/io/write_xml_module_name_map.h
new file mode 100644
index 000000000..ae47c70d3
--- /dev/null
+++ b/libs/libnamemanager/src/io/write_xml_module_name_map.h
@@ -0,0 +1,20 @@
+#ifndef WRITE_XML_MODULE_NAME_MAP_H
+#define WRITE_XML_MODULE_NAME_MAP_H
+
+/********************************************************************
+ * Include header files that are required by function declaration
+ *******************************************************************/
+#include <fstream>
+
+#include "module_name_map.h"
+
+/********************************************************************
+ * Function declaration
+ *******************************************************************/
+namespace openfpga {  // Begin namespace openfpga
+
+int write_xml_module_name_map(const char* fname, const ModuleNameMap& module_name_map);
+
+}  // End of namespace openfpga
+
+#endif