Quelch is an English surname, with alternative spellings of Quelche, or Qulch
It derived from the Old English nickname for a Celt or foreigner "woelisc", via Middle English "walsche", to Welch, Welsh or Wels(c)he. Notable people with the surname include:
Harry Quelch (1858–1913) one of the first Marxists in Britain
John Quelch (b 1951) British-American academic
John Quelch (pirate) (1666-1704) English Pirate
Lorenzo Quelch (1862-1937) British trade unionist and politician, and younger brother of Harry Quelch
Tom Quelch socialist politician and son of Harry Quelch
Victor Quelch (1891–1975) Canadian farmer, soldier and politician
