Herlin is a surname. People with this name include:
Antti Herlin (born 1956), Chairman of the Board of the Finnish KONE Corporation
Auguste-Joseph Herlin (1815–1900), a French genre painter from Lille
Friedrich Herlin (c. 1425/30 – 1500), a German painter.
Fritz Herlen (or Herlin) (before 1449 – 1491), a German artist of the early Swabian school, in the 15th century
Hans Herlin (1925–1994), a German novelist
Jacques Herlin (1927–2014), a French character actor