Look up justen in Wiktionary, the free dictionary.
Justen is both a surname and a given name. Notable people with the name include:
- Christel Justen (1957–2005), German swimmer
- Iago Justen Maidana Martins, Brazilian footballer
- Marçal Justen Filho (born 1955), Brazilian lawyer and jurist
- Justen Blok, Dutch field hockey player
- Justen Glad (born 1997), American soccer player
- Justen Kranthove, Dutch footballer