Aapo is a Finnish and Estonian given name derived from Abraham. Notable people with the name include:
Aapo Häkkinen (born 1976), Finnish musician
Aapo Halme (born 1998), Finnish football center-back
Aapo Harjula (1880–1961), Finnish cooperative inspector and politician
Aapo Heikkilä (born 1994), Finnish footballer
Aapo Ilves (born 1970), Estonian poet, writer, artist and musician
Aapo Inkinen (1898–1960), Finnish politician
Aapo Kyrölä (born 1979), Finnish businessman
Aapo Mäenpää (born 1998), Finnish footballer
Aapo Perko (1924–2021), Finnish shot putter
Aapo Pukk (born 1962), Estonian painter