Denis Rich AFSM (born 26 October 1954) is a former Australian rules football field umpire in the Australian Football League (AFL).

Recruited from the West Suburban Football League, Rich made his senior VFL umpiring debut in Round 1 of the 1982 VFL season at the Melbourne Cricket Ground (MCG) in the game between Richmond and North Melbourne. His colleague that day was Ian Robinson. Rich went on to co-officiate in 251 senior VFL/AFL games, including three Grand Finals - in 1990, 1992 and 1994.

Besides umpiring football at the highest level, Rich also served a long career with the Metropolitan Fire Service (MFS).^[1] In 2006 it was reported that Rich was going to Antarctica to take up the position of Station Leader at Casey Station.^[1]