During the 1929–30 English football season, Gillingham F.C. competed in the Football League Third Division South. It was the 10th season in which the club competed in the Football League. Gillingham finished 21st and the club was required to apply for re-election to the League. The team lost in the first round of the FA Cup to Margate of the Kent League. Forward Fred Cheesmur scored six goals in a match against Merthyr Town on 26 April 1930, a club record haul for a single match at a professional level which stands to this day.