Sir John Whittaker Ellis, 1st Baronet JP (25 January 1829 – 20 September 1912) was Lord Mayor of London for 1881–82, in which year he was made a baronet. Two years later he was elected and re-elected Conservative Member of Parliament for eight years, not seeking further re-election. A very prosperous banking executive, estate agent and auctioneer among his legacies was a fire station at Byfleet, Surrey; he sat on the boards of various hospitals and his wife was also engaged in charities.