Wriothesley Russell, 3rd Duke of Bedford (25 May 1708 – 23 October 1732) was an English nobleman and peer. He was the son of Wriothesley Russell, 2nd Duke of Bedford. He was marginally involved in the politics of Hanoverian Succession.
thumb|left|[[Anne Russell, Duchess of Bedford|Lady Anne Egerton by Enoch Seeman]]
Russell married his sister's stepdaughter, Lady Anne Egerton, daughter of Scroop Egerton, 1st Duke of Bridgwater, on 22 April 1725. Russell courted Egerton, trying to get Sarah Churchill, Queen Anne's famous favourite, as a go-between, for political reasons, as he has opposed Walpole. His widow re-married, had offspring, and ultimately became an ancestor of Diana, Princess of Wales, and thus William, Prince of Wales. In any case, it was clearly more of a marriage about politics, than sex or love.