Royal College has over 50 active clubs and societies. These ranges from those related to Academic study (Mathematics Society) to those associated with hobbies (Philatelic Society). Some to those linked with organizations outside college (Red Cross Society), and to those catering to the Arts (Art Circle). Most enjoy enthusiastic membership, filling the college calendar with their activities, all year round.

The following are the List of Clubs & Societies of Royal College.

Adventure Club
Agriculture Club
Archeological Club
Art Circle
Astronomical Society
Aviation Society
Biology Association
Buddhist Brotherhood
Catholic Student Union
Chemistry Society
Commerce Society
Computer Society
Debaters Council
Discussion Forum
Drug Prevention Unit
English Drama Society
English Literary Association
Environmental Conservation
Film Society
Gavel Club
General Knowledge Club
Hindu Student Union
History Society
I *earn
Insurance Society
Interact Club
Inventors Club
Islamic Society
Junior Sinhala Literary Association
Dancing Society
Library Readers Association
Mathematics Society
Media Unit
Oriental Music Society
Philatelic Club
Photographic Society
Political Science Society
Radio Club
Red Cross Society
Science Association
Scrabble Club
Sinhala Drama Society
Sinhala Language and Literary Unit
Sinhala Oratory and Debating Society
Social Services League
Student Christian Movement
Tamil Debaters Council
Tamil Dramatic Society
Tamil Karnatic Society
Tamil Literary Association
United Nations Club
United Student Circle
Western Music Society
Young Zoologist Association