Thomas Peel (1795-1864) was one of the very early settlers of Western Australia. He was a second cousin of Sir Robert Peel.

In 1828 Peel and three others including an MP Potter McQueen formed a consortium to found a colony at the Swan River in Western Australia by sending settlers there with stock and necessary materials. The consortium requested a grant from the British Colonial Office in London of 4,000,000 acres (16,000 km²). The government declined this and offered a grant of 1,000,000 acres (4,000 km²) on certain conditions.

Early in 1829 all the members of the consortium withdrew except Peel. Fresh conditions were made, the final arrangement being that if Peel landed 400 settlers before November 1, 1829 he would receive 250,000 acres (1,000 km²). If the conditions were fulfilled further grants would be made.

He arrived in Western Australia onboard the Parmelia on June 1, 1829 with 300 settlers. As he had not fulfilled the conditions the grant was no longer reserved for him. The land eventually granted, 250,000 acres (1,000 km²), extended from Cockburn Sound to the Murray River.

The early settlement struggled due to lack of labour and limited good quality farming land. This together with Peel's poor organising skills meant that he was soon in difficulties. Within less than two years he had spent £50,000 and some of his settlers had deserted him. Eventually he discharged all but a few from their indentures. In September 1834, Peel was granted further land, but he had little success in developing it.

He died at Mandurah in 1864 in comparatively poor circumstances.