Niel may refer to:
Niel, Belgium, town and municipality located in the Belgian province of Antwerp Niel Jaarmarkt Cyclo-cross, cyclo-cross race held in Niel, Belgium, and part of the Cyclo-cross Gazet van Antwerpen Prix Niel, Group 2 flat horse race in France Niel, Kranenburg, village in the municipality Kranenburg, North Rhine-Westphalia, Germany Antoniel dos Santos, Brazilian footballer known as Niel Niel (singer), South Korean member of boy group Teen Top
People with the surname Adolphe Niel (1802–1869), French Army general and statesman, also Marshal of France C. B. van Niel (1897–1985), Dutch-American microbiologist Herms Niel (1888–1954), German composer Marthe Niel (1878–1928), French aviator Xavier Niel (born 1967), French entrepreneur and businessman
See also Niall Neil Niels (disambiguation)