Täby Municipality (Täby kommun) is a municipality north of Stockholm in Stockholm County in east central Sweden. Its seat is located in the town of Täby. Täby Municipality can be characterized as a suburb of Stockholm.
The municipality is one of few in Sweden which has approximately the same size as the original entity created out of Täby parish, when the first local government acts came into force in 1863. It has not been amalgamated with other units, but minor changes of its limits have been carried out.