Lundborg is a surname. Notable people with the surname include:
Einar Lundborg (1896–1931), Swedish aviator Florence Lundborg (1871–1949), American artist Herman Bernhard Lundborg (1868–1943), Swedish physician Patrick Lundborg (1967–2014), writer on pop culture and author of the book The Acid Archives
See also Unverricht–Lundborg disease (abbreviated ULD or EPM1), the most common form of progressive myoclonic epilepsy