Hans Gillis Åke Holmér (28 December 1930 – 4 October 2002) was a Swedish civil servant and author. Holmér served as Chief of the Swedish Security Service (SÄPO) and later Chief Commissioner (länspolismästare) of Stockholm County. He became well known during his tenure, spanning barely a year, as Chief of the special investigation unit into the assassination of the Swedish Prime Minister Olof Palme (1986–1987). Holmér was commonly associated with the Swedish Social Democratic Party and was known to have good connections within its top ranks.