RCP has also fostered international friendship through its sister clubs all over the world. The first sisterhood pact was signed with Rotary Club of Nishinasuno, Japan in RY 1982 - 1983 under PDG Herman Gamboa.

To date RCP has six foreign and two local sister clubs all of which are helping as active partners of RCP in its various ongoing projects:

• The Rotary Club of Balan Korea RI District 3750
• The Rotary Club of Kowloon Golden Mile Hong Kong RI District 3450
• The Rotary Club of Kwinana W A Australia RI District 9460
• The Rotary Club of Wilmington Massachusetts USA RI District 7930
• The Rotary Club of Bacolod-North Philippines RI District 3850
• The Rotary Club of Cebu-North Philippines RI District 3860
• Stichting Liliane Fond of The Netherlands
• Physicians for Peace USA