diff --git a/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFImporter.cc b/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFImporter.cc
index 299a24252..eb572ec5a 100644
--- a/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFImporter.cc
+++ b/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFImporter.cc
@@ -1069,7 +1069,7 @@ void
 LEFDEFReaderState::ensure_lef_importer (int warn_level)
 {
   if (! mp_lef_importer.get ()) {
-    mp_lef_importer.reset (new db::LEFImporter (warn_level));
+    mp_lef_importer.reset (new db::LEFImporter (warn_level, true));
   }
 }
 
diff --git a/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFImporter.h b/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFImporter.h
index 743612e68..25e8e058f 100644
--- a/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFImporter.h
+++ b/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFImporter.h
@@ -896,6 +896,16 @@ public:
     m_map_files = f;
   }
 
+  bool skip_duplicate_macros () const
+  {
+      return m_skip_duplicate_macros;
+  }
+
+  void set_skip_duplicate_macros (bool v)
+  {
+      m_skip_duplicate_macros = v;
+  }
+
   std::string single_map_file () const
   {
     return m_map_files.empty () ? std::string () : m_map_files.front ();
@@ -1055,6 +1065,7 @@ private:
   bool m_separate_groups;
   bool m_joined_paths;
   std::vector<std::string> m_map_files;
+  bool m_skip_duplicate_macros;
   unsigned int m_macro_resolution_mode;
   bool m_read_lef_with_def;
   std::vector<std::string> m_lef_files;
diff --git a/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFPlugin.cc b/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFPlugin.cc
index 8d3519cda..45a9daab0 100644
--- a/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFPlugin.cc
+++ b/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFPlugin.cc
@@ -142,7 +142,7 @@ LEFDEFReader::read_lefdef (db::Layout &layout, const db::LoadLayoutOptions &opti
 
     tl::SelfTimer timer (tl::verbosity () >= 21, tl::to_string (tr ("Reading LEF file")));
 
-    db::LEFImporter importer (warn_level ());
+    db::LEFImporter importer (warn_level (), effective_options.skip_duplicate_macros ());
 
     for (std::vector<std::string>::const_iterator l = effective_options.begin_lef_files (); l != effective_options.end_lef_files (); ++l) {
 
diff --git a/src/plugins/streamers/lefdef/db_plugin/dbLEFImporter.cc b/src/plugins/streamers/lefdef/db_plugin/dbLEFImporter.cc
index ff4ceb531..03f41f115 100644
--- a/src/plugins/streamers/lefdef/db_plugin/dbLEFImporter.cc
+++ b/src/plugins/streamers/lefdef/db_plugin/dbLEFImporter.cc
@@ -33,8 +33,9 @@ namespace db
 // -----------------------------------------------------------------------------------
 //  LEFImporter implementation
 
-LEFImporter::LEFImporter (int warn_level)
-  : LEFDEFImporter (warn_level)
+LEFImporter::LEFImporter (int warn_level, bool skip_duplicate_macros)
+  : LEFDEFImporter (warn_level),
+    m_skip_duplicate_macros (skip_duplicate_macros)
 {
   //  .. nothing yet ..
 }
@@ -886,7 +887,58 @@ LEFImporter::read_macro (Layout &layout)
   std::string mn = get ();
 
   if (m_macros.find (mn) != m_macros.end ()) {
-    error (tl::to_string (tr ("Duplicate MACRO name: ")) + mn);
+    if (m_skip_duplicate_macros) {
+      // 1. Change error to warning
+      warn (tl::to_string (tr ("Duplicate MACRO name: ")) + mn + tl::to_string (tr (" (Skipping duplicate)")));
+
+      // Safe LEF block skipping
+      while (! at_end ()) {
+        
+        if (test ("END")) {
+          expect (mn);
+          break;
+        } else if (test ("PIN")) {
+            std::string pn = get (); // PIN always has a pin-name -> skip it
+            //tl::info << tl::to_string (tr ("Found PIN : ")) + pn;
+            while (! at_end ()) {
+              if (test ("PORT")) {
+                //tl::info << tl::to_string (tr ("Found PORT within ")) + pn;
+                while (! at_end ()) {
+                  if (test ("END")) {
+                    //tl::info << tl::to_string (tr ("Found PORT END within ")) + pn;
+                    break;
+                  } else {
+                    skip_entry ();
+                  }
+                }
+              } else if (test ("END")) {
+                std::string pn = get (); // PIN always has a pin-name -> skip it
+                //tl::info << tl::to_string (tr ("Found PIN END : ")) + pn;
+                break;
+              } else {
+                skip_entry ();
+              }
+            }
+        } else if (test ("OBS")) {
+          //tl::info << tl::to_string (tr ("Found OBS"));
+          while (! at_end ()) {
+            if (test ("END")) {
+              //tl::info << tl::to_string (tr ("Found END OBS"));
+              break;
+            } else {
+              skip_entry ();
+            }
+          }
+        } else {
+          skip_entry ();
+        }
+      }
+      tl::info << tl::to_string (tr ("Successfully skipped duplicate MACRO: ")) + mn;
+
+      return; // Exit early so we don't register or process this duplicate
+    } else {
+      error (tl::to_string (tr ("Duplicate MACRO name: ")) + mn);
+    }
   }
 
   set_cellname (mn);
diff --git a/src/plugins/streamers/lefdef/db_plugin/dbLEFImporter.h b/src/plugins/streamers/lefdef/db_plugin/dbLEFImporter.h
index 176648099..4d994e504 100644
--- a/src/plugins/streamers/lefdef/db_plugin/dbLEFImporter.h
+++ b/src/plugins/streamers/lefdef/db_plugin/dbLEFImporter.h
@@ -50,7 +50,7 @@ public:
   /**
    *  @brief Default constructor
    */
-  LEFImporter (int warn_level);
+  LEFImporter (int warn_level, bool skip_duplicate_macros);
 
   /**
    *  @brief Destructor
@@ -169,6 +169,8 @@ private:
   void read_layer (Layout &layout);
   void read_macro (Layout &layout);
   void skip_entry ();
+
+  bool m_skip_duplicate_macros;
 };
 
 }
diff --git a/src/plugins/streamers/lefdef/db_plugin/gsiDeclDbLEFDEF.cc b/src/plugins/streamers/lefdef/db_plugin/gsiDeclDbLEFDEF.cc
index 0d1efba6b..04061b6ef 100644
--- a/src/plugins/streamers/lefdef/db_plugin/gsiDeclDbLEFDEF.cc
+++ b/src/plugins/streamers/lefdef/db_plugin/gsiDeclDbLEFDEF.cc
@@ -967,6 +967,19 @@ gsi::Class<db::LEFDEFReaderOptions> decl_lefdef_config ("db", "LEFDEFReaderConfi
     "\n"
     "This property has been added in version 0.27. The ability to supply multiple files has been added in version 0.30.6.\n"
   ) +
+  gsi::method ("skip_duplicate_macros", &db::LEFDEFReaderOptions::skip_duplicate_macros,
+    "@brief Get the setting for wether to skip douplicate LEF Macro definitions.\n"
+    "This property describes what to do when while reading LEF files douplicate MACRO definitions are "
+    "discovered. Normally an error is issued and the import fails. When setting this flag to true a"
+    "warning is issued and the macro definition is skipped. So always the first definition of MACRO is used.\n"
+    "\n"
+    "This property has been added in version 0.30.x.\n"
+  ) +
+  gsi::method ("skip_duplicate_macros=", &db::LEFDEFReaderOptions::set_skip_duplicate_macros, gsi::arg ("skip_duplicate_macros"),
+    "@brief Sets mode how to handle douplicate MARCO definitions.\n"
+    "\n"
+    "This property has been added in version 0.30.x.\n"
+  ) + 
   gsi::method ("macro_resolution_mode", &db::LEFDEFReaderOptions::macro_resolution_mode,
     "@brief Gets the macro resolution mode (LEF macros into DEF).\n"
     "This property describes the way LEF macros are turned into layout cells when reading DEF. There "