Sulo may refer to:

• Sulo (singer) (born 1969), Swedish vocalist and songwriter
• Sulo Aittoniemi (1936–2016), Finnish politician
• Sulo Bärlund (1910–1986), Finnish shot putter
• Sulo Cederström (1903–1944), Finnish sports shooter
• Sulo Heino (1908–1996), Finnish athlete
• Sulo Jääskeläinen (1890–1942), Finnish skier
• Sulo Ketola (born 2007), Finnish footballer
• Sulo Leppänen (1916–2015), Finnish wrestler
• Sulo Nurmela (1908–1999), Finnish cross-country skier
• Sulo Parkkinen (1930–2013), Finnish football player
• Sulo Salmi (1914–1984), Finnish gymnast
• Sulo Salo (1909–1995), Finnish football player
• Sulo Suorttanen (1921–2005), Finnish politician
• Sulo Teittinen (1882–1964), Finnish politician
• Sulo Vaattovaara (born 1967), Swedish football player

• Sulo (company) [de], a German/French environmental technology company, formerly Plastic Omnium Environment, a division of OPmobility