Pétursson is a surname of Icelandic origin, meaning son of Pétur (Peter).^{[citation needed]} In Icelandic names, the name is not strictly a surname, but a patronymic. The name refers to:

• Guðmundur Pétursson (born 1986), Icelandic football player
• Gunnar Pétursson (1930–2022), Icelandic Olympic cross-country skier
• Hallgrímur Pétursson (1614–1674), Icelandic pastor and poet
• Jóhann K. Pétursson (1913–1984), Icelandic performer known as “The Viking Giant”
• Jón Pétursson (1936–2003), Icelandic high jumper
• Margeir Pétursson (born 1960), Icelandic banker and chess grandmaster
• Oddur Pétursson (1931–2018), Icelandic Olympic cross-country skier
• Pétur Pétursson (born 1959), Icelandic professional football player
• Philip Petursson (1902–1988), Canadian politician from Manitoba; provincial legislator (1966–77)