Certa

• Hussein Khodja (died 1857, born as Giuseppe Certa), Tunisian politician
• Joe Certa, creator of the DC Comics character Martian Manhunter
• Scott Certa, bassist for U.S. band Exotic Animal Petting Zoo

• Château Pèlerin, Atlit, Israel; during the Roman Era known as "Certa"

• MS Certa, an Italian ship, formerly CCGS John Cabot (1965)
• Autobianchi Y10 Certa, a model of the Y10 citycar from Autobianchi

• Certa (oil), an Irish oil brand
• "La Certa" (dance), a winning performance dance at the Eurovision Young Dancers 2017

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• Ercheia certa (E. certa), a species of moth
• Eupithecia certa (E. certa), a species of moth
• Evarcha certa (E. certa), a species of jumping spider
• Oinophila certa (O. certa), a species of moth
• Phlegra certa (P. certa), a species of jumping spider
• Plusia certa (P. certa), a species of moth
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