John Bernard "Jack" Gaffney OAM (21 August 1929 – 1 August 2018) was an Australian rules footballer who played with Fitzroy in the Victorian Football League (VFL).Originally from Broken Hill, Gaffney played for and coached Prahran in the Victorian Football Association (VFA) after retiring from the VFL.
He later became a lawyer, and was the Supreme Court of Victoria Registrar of Criminal Appeals, a Master; and Registrar of the Court of Appeal.