Peter Marker (born 21 March 1949) is a former Australian rules footballer who played with and captained Glenelg in the SANFL during the late 1960s and 1970s, captaining the Tigers to the 1973 SANFL premiership, in what was the last SANFL Grand Final played at Adelaide Oval until the return of the premiership deciding game in 2014, some 41 years later.