Tanjong is a federal constituency in Northeast Penang Island District, Penang, Malaysia, that has been represented in the Dewan Rakyat since 1959.
The federal constituency was created in the 1958 redistribution and is mandated to return a single member to the Dewan Rakyat under the first-past-the-post voting system.
At 6 km<sup>2</sup>, it is the smallest parliamentary constituency in Malaysia.
While this Malaysian parliamentary constituency has the third highest proportion of predominantly Chinese voters (behind Bandar Kuching and Kepong), Tanjong parliamentary area may be considered as the constituency area with the lowest proportion of Malay-Muslim voters in Peninsular Malaysia where it forms only less than 4% of the overall voters in the parliamentary area. As of 2020, Tanjong has a population of 34,809 people.
According to the federal gazette issued on 18 July 2023, the Tanjong constituency is divided into 37 polling districts.