The Ibadan Grammar School Old Students Association is a thriving organization of thousands of old students living and working around the world. 
A worldwide network of chapters and affiliates of the association extends across major cities in Nigeria, Canada, the U.S., UK and overseas. These groups, 
run by alumni volunteers, help organize events, programs for the school and other great opportunities to keep IGS old students in touch with the school and
each other. Get involved with your local chapter or class set and start reconnecting! 
The President of the IGSOSA National Body is Venerable Kolawole Jaiyeoba

1999/2005

Inactive

1998/2004

Inactive

1997/2003

Active

1996/2002

Active

1995/2001

Inactive

1994/2000

Active

1993/1999

Active

1992/1998

Inactive

1991/1997

Inactive

1990/1996

Inactive

1989/1995

Inactive

1988/1994

Inactive

1987/1993

Inactive

1986/1992

Active

1985/1991

Inactive

1984/1989

Active

1983/1988

Inactive

1982/1987

Inactive

1981/1986

Active

1980/1985

Inactive