Van Loon (Dutch pronunciation: [vɑn ˈloːn]) is a Dutch language toponymic surname. Loon, an Old Dutch dative plural of Lo meaning "near/in the woods",[1] is (part of) the name of multiple towns (e.g. Borgloon and Loon op Zand) and two medieval counties in the Low Countries.
Notable people with the surname include:
- Van Loon (family) [de; nl], Dutch noble family
- Agnes van Loon (1150–1191), duchess consort of Bavaria
- Annewies van Loon (1793-1877), Dutch art collector better known as Annewies van Winter
- Antonius van Loon (1888–1962), Dutch tug of war competitor
- Borin Van Loon (born 1976), British illustrator
- Emmo van Loon (died 1078 AD), count of the County of Loon
- Gerardus van Loon, an alternate name for Olympic sport shooter Dirk Boest Gips
- Giselbert van Loon (c. 980 – c. 1045), count of the County of Loon
- Hendrik Willem van Loon (1882–1944), Dutch-American historian and journalist
- Johan van Loon (1934–2020), Dutch ceramist and textile artist
- Jordy van Loon (born 1993), Dutch child singer
- Julienne van Loon (born 1970), Australian writer
- Larry Van Loon, member of The Shaun Murphy Band
- Lawrence Gwyn van Loon (1903-1985), American general practitioner, historical linguist and forger
- Louise Van Loon (1905-1987), American wife of Reginald Sheffield
- Maria van Loon-Heinsberg (1424–1502), countess consort
- Martine van Loon (born 1972), Dutch singer
- Peeter van Loon (ca. 1600–1660), Flemish painter
- Patrick van Loon (born 1974), Dutch judoka
- Paul van Loon (born 1955), Dutch children's author and singer
- Richard J. Van Loon (born 1940), Canadian academic and civil servant
- Theodoor van Loon (1581 or 1582–1649), Flemish Baroque painter
- Ton van Loon (born 1956), Dutch general
- Willem van Loon (1891–1975), Dutch tug of war competitor