'Kitmaster' was the name of a range of plastic Model Railway construction kits produced in the UK by the Rosebud doll company under the name 'Rosebud Kitmaster Limited'.

The range consisted of 34 kits of locomotives and carriages. Production started in 1959 when Rosebud Kitmaster Ltd was formed and lasted only until 1962, when, due to financial difficulties, they sold the tools and existing stock to Airfix Ltd. Airfix reintroduced some of the British Locomotives with some slight modifications but the Coaches and the Continental Locomotives were not re-issued. Some of the Locomotives, from the same tools, are still available today under the Dapol name.