Sir Joseph John Bossano is a Gibraltarian politician who served as Chief Minister of Gibraltar from 1988 to 1996 and Leader of the Gibraltar Socialist Labour Party from 1978 to 2011. He served as Leader of the Opposition from 1984 to 1988 and 1996 to 2011. He was first elected to the then Gibraltar House of Assembly in 1972 and is often referred to as the Father of the House for being the longest-serving parliamentarian in Gibraltar.

Gibraltarians are an ethnic group native to Gibraltar, a British overseas territory located near the southernmost tip of the Iberian Peninsula at the entrance to the Mediterranean Sea.