Silsand (Norwegian) or Silsáddu (Northern Sami) is a village in Senja Municipality in Troms county, Norway. It is located on the eastern shore of the large island of Senja. The 1.07-square-kilometre (260-acre) village has a population (2023) of 1,638 and a population density of 1,531 inhabitants per square kilometre (3,970/sq mi).

Silsand is now considered a suburb of the neighboring town of Finnsnes, which is located across the Gisundet strait on the mainland. Before the construction of the Gisund Bridge, Silsand consisted of just a few houses. With the construction of the bridge and the change in rural Norwegian demographics, the population has experienced a rapid increase since the early 1980s. Most of the new inhabitants come from other smaller villages in the Midt-Troms area.

Silsand has three schools: Småslettan skole (1-4th grade), Silsand barneskole (5-7th grade) and Silsand ungdomsskole (8-10th grade). FK Senja, a football club, is also based in Silsand, with their home field in the neighboring village of Laukhella. Storevatnet lake is located just northwest of the town.