Bolster is a surname. Notable people with the surname include:
Angela Bolster (1925–2005), Irish nun and writer Charles Bolster (1894–1993), American judge George Bolster (1877–1948), Australian politician George S. Bolster (1913–1989), American photographer Henry B. Bolster (1792–1859), American politician and businessman Michael Bolster (born 1967), Irish chef Sally Bolster, American politician Stephanie Bolster (born 1969), Canadian poet Warren Bolster (1947–2006), American skateboard photographer W. Jeffrey Bolster, American historian