The L&YR Class 3 was a class of 4-4-0 steam locomotives of the Lancashire and Yorkshire Railway introduced in 1891 with forty being built. George Hughes rebuilt six locomotives with superheaters between 1908 and 1909, they were later designated L&YR Class 4. All passed to the London, Midland and Scottish Railway at the grouping in 1923 but were withdrawn by 1930.