Tinus may refer to:

• Tinus (spider), a spider genus in the family Pisauridae (Nursery web spiders)
• Tinus, Iran, a village in Kerman Province, Iran

Tinus is also a short form of the given name Martinus and Marthinus. It may refer to:

• Tinus Bosselaar (1936–2018), Dutch footballer
• Tinus de Beer (born 1996), South African rugby player
• Tinus van Doorn (1905–1940), Dutch painter and graphic artist
• Tinus du Plessis (born 1984), Namibian rugby player
• Tinus van Gelder (1911–1999), Dutch cyclist
• Tinus de Jongh (1885–1942), Dutch and later South African painter
• Tinus Lambillion (1912–1994), Dutch boxer
• Tinus Linee (1969–2014), South African rugby player
• Tinus Osendarp (1916–2002), Dutch sprinter
• Tinus Pae (born 1989), Indonesian footballer

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