Sir William Pecche (9 February 1359 – 1399) was an English Member of Parliament.
Pecche was the son of MP and Mayor of London, John Pecche.[1] He married Joan Hadley, a daughter and coheiress of John Hadley, MP for London 1369–1402. Pecche's heir was his son, John.
Pecche was Member of Parliament for Kent in 1394 and September 1397.[2]