AFC Wimbledon–Milton Keynes Dons F.C. rivalry

The rivalry between AFC Wimbledon and Milton Keynes Dons arose from the formation of both clubs following the relocation of Wimbledon F.C. to Milton Keynes, and is mainly rooted in the use of the term "Dons." On relocation of Wimbledon F.C., AFC Wimbledon was formed claiming to be the successor to what fans saw as the death of their club. After the near bankruptcy of Wimbledon F.C., the newly formed Milton Keynes claimed its history, silverware, and the term "Dons"; the silverware was subsequently returned to Merton Council but the continued use of "Dons" is seen by AFC fans as disrespectful of their heritage. For many years the two clubs played at different levels of English football, with the first competitive fixture between them taking place on 2 December 2012 - a second round FA Cup meeting in which the two clubs were drawn against one another, resulting in Milton Keynes dons defeating AFC Wimbledon 2–1.

Following AFC Wimbledon's promotion to the Football League, fixtures between the two clubs have taken place regularly. The rivalry was named as one of "5 of the fiercest rivalries in the Football League" and one of the "8 biggest derbies in the EFL" by commentators. A 2019 study ranked the rivalry 22nd out of the top 30 derbies in all of English football. The fixture has been labelled "one of football's biggest grudge games".