John James "Jack" Snelling (born 8 November 1972) is a former Australian politician. He was the Labor member for the South Australian House of Assembly seat of Playford from the 1997 election until his retirement in 2018. Snelling left the Labor Party in 2021 to found the Family First Party.

Prior to his election into politics, Snelling was an electoral officer, and a staffer in the Shop, Distributive and Allied Employees Association (SDA).^[2] Snelling was a supporter of the work of Christopher Pearson.^[3]

Entering parliament in 1997 at the age of 24, he was the youngest member of the House of Assembly at the time. He was Speaker of the South Australian House of Assembly for the Rann Labor government from 2006 to 2010.^[4] He also served as Deputy Speaker and Chairman of Committees. He is aligned with Labor's right faction.^[5]

A consequence of the major 2016 electoral redistribution was that two thirds of the voters in Snelling's electorate of Playford will be moved to Florey. On 15 March 2017 he won Labor preselection to be the candidate for Florey at the 2018 election. The incumbent member for Florey, Frances Bedford, had also nominated for pre-selection.^[6] On 28 March 2017, Bedford resigned from the party after they endorsed Snelling for the seat.^[7] A ReachTEL poll conducted on 2 March 2017 of 606 voters in post-redistribution Florey indicated a 33.4 percent primary vote for Bedford running as an independent which would likely see Snelling defeated after preferences.^[8] Snelling withdrew from the pre-selection on 17 September 2017.^[9]

Jack Snelling is married to Lucia, and has six children. He met his wife through the Young Labor movement.^[14]