Chojnowski (feminine: Chojnowska; plural: Chojnowscy) is a Polish surname. Notable people with this surname include:
Krystyna Chojnowska-Liskiewicz (1936–2021), Polish naval engineer and sailor Patryk Chojnowski (born 1990), Polish para table tennis player Silvana Chojnowski (born 1994), Polish footballer
See also
Choynowski Chojnów Landscape Park