Tanaboon Kesarat (Thai: ธนบูรณ์ เกษารัตน์) born 21 September 1993, simply known as Tum (Thai: ตั้ม), is a Thai professional football player, who plays as Defensive midfielder or Centre back for Thai Leagues 1 club Chiangrai United and the Thailand national team.
In 2012, Tanaboon Kesarat, who graduated from Bangkok Sport School, joined BEC Tero Sasana. The 19-year-old became the vital part of the club in 2013 Thai Premier League. In 2014, Tanaboon and his teammates helped the club to win 2014 Thai Leagues Cup, the club’s first trophy in 12 years.
On 27 January 2016 it was announced that Tanaboon along with his BEC Tero teammates Peerapat Notchaiya and Chanathip Songkrasin would be joining Muangthong United on loan for the 2016 season.
He and his companions later joined Muangthong on the permanent deals in June 2016.
On 2 November 2016, Chiangrai United F.C. made the official announcement that the club had completed an agreement with Muangthong United to sign Tanaboon Kesarat. The transfer fee was undisclosed but estimated to be around 50 million Baht. Tanaboon has become the most expensive Thai player, broke the record of Theerathon Bunmathan who joined Muangthong United from Buriram United F.C. in May 2016 with the transfer fee of 35 million Baht