SJ Tc is a diesel-hydraulic locomotive used in Sweden for line service and snowploughing. Twenty locomotives were built for Swedish State Railways (Swedish: Statens Järnvägar, SJ) in 1969-71 by Nydquist & Holm for combined freight, line service and snowploughing service, alongside 10 of the larger Tb diesel-electric locomotives. SJ used the locomotives for freight and track work trains during the summer and for snow removal in the winter. In 1984, the locomotives were transferred to the service fleet and they were then mainly used for track work trains.