IRL may refer to:

• IRL (2013 film), a Swedish drama film about a high school student tormented by peers
• IRL (2019 film), an American drama film about "the ups and downs of online dating and modern dating"
• IRL (album), a 2023 album by Mahalia
• In Real Life (band), boy band

• Republic of Ireland (ISO 3166-1 alpha-3 country code)
• Irlam railway station (National Rail station code IRL), England

• International Rugby League, the governing body for the sport of rugby league
• Industrial Research Limited, New Zealand
• Indy Racing League, renamed IndyCar in 2012
• Institute for Research on Learning, Palo Alto, California, US, 1986–2000
• Institut Ramon Llull, promoting Catalan language and culture
• Ipswich Rugby League, Australian rugby league football competition
• Isamaa ja Res Publica Liit (Pro Patria and Res Publica Union), an Estonian political party

• Internet resource locator
• Inverse reinforcement learning, in machine learning
• Innovation readines level, an indicator of technology development from research into market-ready innovation proposed at KTH Royal Institute of Technology, Sweden
• Investment readiness level, an indicator proposed by Steve Blank complementing Technology readiness level on the way of technology development from research into a market-ready solution (especially for startup companies)

• "In real life", internet slang

• In Remote Life (shortened to IRL), a discontinued app that can be used for scheduling or meeting friends

• In Real Life (disambiguation)