Hinrichsen is a surname. Notable people with the surname include:
Diederich Hinrichsen (born 1939), German mathematician
Eric Hinrichsen (born 1976), Canadian basketball player
Henri Hinrichsen (1868–1942), German publisher
Niels Hinrichsen (born 1942), Danish actor
Siegmund Hinrichsen (1841–1902), German banker and politician
Silke Hinrichsen (1957–2012), German politician (SSW)
William H. Hinrichsen (1850–1907), American politician