Nielson is a surname. Notable people with the surname include:

• Howard C. Nielson (1924–2020), American politician from Utah; U.S. Representative 1983–91

• Niel Nielson (born 1954), American academic; president of Covenant College, Georgia, United States

• Poul Nielson (born 1943), Danish politician and government minister

• Nielson (singer) (born 1989), Dutch singer-songwriter

See also

• Neilson (disambiguation)

• Nielsen (disambiguation)

• Neilsen (disambiguation)

• Nilsen