Henry George Tossell (c. 1854 – 24 March 1933) was an Australian politician who represented the South Australian House of Assembly multi-member seat of Yorke Peninsula from 1915 to 1930 for the Liberal Union and Liberal Federation.^[1]

His family migrated to South Australia when he was at a young age, when he spent most of his time in the Mount Barker region. He worked for the Jeanes Brothers firm as a road contractor and became its manager before starting his own contracting business; he subsequently became a farmer near Maitland. As a contractor for the local road board, he was once the highest individual wage payer in his district.^[2] Tossell was one of the original members of the Farmers and Producers Political Union.^[3] He was an officer and councillor of the District Council of Yorke Peninsula for 27 years.^[4]

He was elected to the safe conservative House of Assembly seat of Yorke Peninsula at the 1915 state election, and was re-elected four times. He retired at the 1930 election.^[5]

Tossell's wife died in August 1918 following a serious illness.^[6]