Understanding importance of international relationship with Masonic organizations around the world, GSLC develops friendly and fraternal relationships inspired by masonic values with Obediences worldwide.
Until today Grand Symbolic Lodge of Croatia has signed 49 Treaties of Amity with different Obediences from following countries:
| 1. Denmark | 11. Cameroon | 21. Albania |
| 2. Poland | 12. USA | 22. Senegal |
| 3. Russia | 13. Canada | 23. Israel |
| 4. France | 14. Haiti | 24. Slovenia |
| 5. Portugal | 15. Bolivia | 25. Peru |
| 6. Malta | 16. Germany | 26. Colombia |
| 7. Spain | 17. Italy | 27. Mexico |
| 8. Bulgaria | 18. Romania | 28. Argentina |
| 9. Thailand | 19. Czech Republic | 29. Brasil |
| 10. Lebanon | 20. Netherlands |