Robert Lionel "Bob" Seddon (birth registered October→December 1860 in Salford district – 15 August 1888) was an English international rugby union forward who played club rugby for Broughton Rangers and Swinton and county rugby for Lancashire. Seddon was capped at international level for both England and the British Isles. Seddon played three matches for England in 1887, and in 1888 was one of only four capped players to represent Britain in the 1888 tour of New Zealand and Australia. Seddon was given the captaincy of the British team, but died in a boating accident halfway through the tour. Seddon and the British team were honoured in 2013 with induction into the IRB Hall of Fame.