The 1959 Tube Stock was a type of London Underground tube train constructed in the late 1950s. They were intended for use on the Piccadilly line, but also saw use on several other tube lines. It was the first production (not prototype) tube stock to have unpainted aluminium alloy bodywork.

The 1959 Stock entered service on the Piccadilly line, but most units were drafted to the Central line because that line's "Standard stock" was becoming very unreliable. The Central line's version of the 1959 stock, the 1962 stock, later took over.