Welin

Welin is a surname that may refer to:


 * Anna Welin (born 1994), Swedish footballer
 * Axel Welin (1862–1951), Swedish inventor
 * Welin breech block, design for locking artillery breeches invented by Axel Welin
 * Gustaf Welin (1930–2008), Swedish Army lieutenant general
 * Johanna Welin (born 1984), Swedish-born German wheelchair basketball player
 * Karl-Erik Welin (1934–1992), Swedish pianist and composer