Ralph Emmanuel Didier "Deej" Babet (/bəˈbɛt/ bə-BET; born 29 June 1983) is an Australian politician. He has been a senator for Victoria in the Australian Parliament since 2022, representing the United Australia Party (UAP), and is the party's only current federal elected representative. Prior to entering politics, he was a real estate agent.

Babet was born on 29 June 1983 on the remote Indian Ocean island of Rodrigues, part of the Republic of Mauritius. He and his family migrated to Australia in 1990 when he was seven years old, and he became an Australian citizen in 1993. He spoke French as his first language.

Babet grew up in Doveton, attending the Holy Family Catholic Primary School and later St John's Regional College in Dandenong. He holds the degree of Bachelor of Business from Swinburne University of Technology and an advanced diploma in sales and marketing from the Chisholm Institute.

On Christmas Day 2014 in Toorak, Babet was charged with criminal damage. On 6 March 2017, a criminal damage charge was recorded but no conviction was given by the Melbourne Magistrates' Court. He was instead ordered to participate in a diversion program.

On 6 September 2015, he was charged with unlawful assault in South Melbourne. Babet pleaded guilty to the charges at the Melbourne Magistrates Court on 22 August 2018. In exchange for Babet's compliance with a bond/undertaking, the charges were dismissed.

Together with his brother Matt, Babet runs a real estate firm. His brother unsuccessfully contested the seat of Bruce in the 2022 federal election.

Babet was on the committee of the Australian Sovereignty Party in 2010. The party never contested any elections.

Babet renounced his Mauritian citizenship in March 2022.