Wikipedia
Niilo
- Niilo Wälläri (1897–1967), Finnish Socialist, syndicalist leader
- Niilo Yli-Vainio (1920–1981), Finnish Pentecostalist leader
- Niilo Halonen (born 1940), Finnish former ski jumper who competed between 1960 and 1967
- Niilo Paasivirta, Finnish internet personality
- Niilo Jääskinen (born 1958), Finnish lawyer and politician
- Niilo Sevänen (born 1979), Finnish death metal musician