Alexander Dunne (; born 11 November 2005) is an Irish racing driver who competes in the FIA Formula 2 Championship for Rodin Motorsport.
Born and raised in County Offaly, Dunne began competitive kart racing aged eight, winning several national titles before progressing to junior formulae in 2021. After debuting in Spanish and ADAC Formula 4, he won the 2022 F4 British Championship with Hitech and finished runner-up to Andrea Kimi Antonelli in Italian F4. He then progressed to GB3 with Hitech, finishing runner-up to Callum Voisin in his rookie season. After a year in FIA Formula 3, Dunne graduated to FIA Formula 2 in 2025 with Rodin, winning multiple races in his rookie campaign.
A member of the McLaren Driver Development Programme from 2024-2025, Dunne made his free practice debut in Formula One at the 2025 Austrian Grand Prix with McLaren. He served as a reserve driver for McLaren in Formula E for the 2024–25 season, prior to the team's withdrawal from the series. He was released from the team prior to the 2025 Singapore Grand Prix.