Blunden is a surname. Notable people with the surname include:

• Alice Blunden (died 1674), the subject of a notorious account of premature burial
• Andy Blunden (born 1945), Australian writer and Marxist philosopher
• Anna Blunden (1829–1915), English pre-Raphaelite artist
• Arthur Blunden (1906–1984), English cricketer
• Bill Blunden, British television and film editor
• Bill Blunden (author), non-fiction writer
• Edmund Blunden (1896–1974), English poet, author and critic
• Godfrey Blunden (1906–1996), Australian journalist and author
• Jeraldyne Blunden (1940–1999), American choreographer
• John Blunden (politician) (1695–1752), Irish politician
• Sir John Blunden, 1st Baronet (1718–1783), Irish baronet and politician
• Mike Blunden (born 1986), Canadian ice hockey player
• Peter Blunden, Australian publisher

• Blunden baronets of Castle Blunden in the County of Kilkenny, a title in the Baronetage of Ireland
• Blunden Harbour, British Columbia, small harbour and native Indian reserve in British Columbia, Canada
• The Amazing Mr Blunden, 1972 British film based on the novel The Ghosts by Antonia Barber
• Blindern
• Blundell
• Blunder (disambiguation)
• Blundy
• Blunsdon