Iiro is a Finnish masculine given name. Notable people with the given name include:

Iiro Aalto (born 1977), Finnish footballer Iiro Järvi (born 1965), Finnish ice hockey player Iiro Järvinen (born 1996), Finnish footballer Iiro Luoto (born 1984), Finnish gridiron football player Iiro Mendolin (born 2006), Finnish footballer Iiro Pakarinen (born 1991), Finnish ice hockey player Iiro Rantala (born 1970), Finnish pianist Iiro Seppänen (born 1975), Finnish producer and author Iiro Sopanen (born 1989), Finnish ice hockey player Iiro Tarkki (born 1985), Finnish ice hockey player Iiro Vanha (born 1994), Finnish futsal player Iiro Viinanen (born 1944), Finnish politician

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