Geoffrey Baker, English Field Marshal and Chief of the General Staff of the British Army (d. 1980)
Geoffrey or Geoff Baker may refer to:

Geoffrey Baker (British Army officer) (1912–1980), head of the British Army

Geoffrey Baker (cricketer) (born 1970), New Zealand cricketer

Geoffrey Baker (rower), English rower

Geoff Baker (journalist) (born 1968), Canadian-born journalist

Geoff Baker (politician) (born 1969), member of the Western Australian Legislative Assembly