Charter President Phallop Thaiarry
President, 1984-1986
Past District Governor Chow Nararidh
President, 1986 - 1987
Past RI Director Noraseth Pathmanand
President, 1987 - 1988
Past President Sitthichoke Sricharoen
President, 1988 - 1989
Past President Dr. Thavatchai Vongsrimongkhol
President, 1989 - 1990
Past President Sutham Sachaphimukh
President, 1990 - 1991
Past President Thaweesin Devahastin Na Ayudhya
President 1991, - 1992
Past President Boonsueb Yoshmetha
President, 1992 - 1993
Past President Chusak Direkwattanachai
President, 1993 - 1994
Past President Narong Joonjuasuparerk
President, 1994 - 1995
Past President Saksit Chalermvongsavej
President, 1995 - 1996
Past RI Director Prof. Dr. Saowalak Rattanavich
Past President, 1996 - 1997
Past President Chaiyos Pichetshote
President, 1997-1998
Past President Dr. Chawewan Puranitee
President, 1998-1999
Past President Jirathep Ritthidej
President, 1999-2000
Past President Sirichai Simaskul
President, 2000-2001
Past President Sataporn Jinachitra
President, 2001-2002
Past President Wichate Trakarnchatree
President, 2002-2003
Past President Pol.Maj.Gen.Dr. Wanida Sasivimolkul
President, 2003-2004
Past President Sathapat Preeda
President, 2004-2005
Past President Krairat Watson
President, 2005-2006
Past President Aranong Sirirangkamanont
President, 2006-2007
Past President Dr. Salakjit Nopakun
President, 2007-2008
Past President Dome Khangtatswas
President, 2008-2009
Past President Sunantha Sombuntham
President, 2009-2010
Past President Pikul Varapark
President, 2010-2011
Past President Dr. Metta Ongkasuwan
President, 2011-2012
Past President Vasunt Leelayoova
President, 2012-2013
Past President Rutorn Nopakun
President, 2013-2014
Past President Somchai Kurujitkosol
President, 2014-2015
Past President Pong Ingkasit
President, 2015-2016
Past President Kitti Tangsongtham
President, 2016-2017
Past President Yuwadee Pitawiwattananont
President, 2017-2018
Past President Chanok Meevisas
President, 2018-2019
Past President Pornanong Niyomka Horikawa
President, 2019-2020
Past President Pravi Techasith
President, 2020-2021
Past President Saksahrit Phansaithong
President, 2021-2022
President Pranee Vidhyameth
President, 2022-2023
President-elect Dipak Shahthanawuth
President, 2023-2024
President-elect Natcha Hemachandra
President, 2024-2025