The Taifa of Silves is a Muslim taifa kingdom that exists in what is now southern Portugal for two distinct periods: from 1027 to 1063, and again from 1145 to 1150 when it is finally conquered by the Almohads.The taifa occupies the westernmost part of the presently Portuguese region of Algarve, near Cape St. Vincent, with its capital in Silves.

Starting from 1048, the power is held by the family of the Banu Muzayn, including three emirs: Isa II al-Muzaffar (1048–1053), Muhammad II al-Nasir (1053–1058) e Isa III al-Muzaffar (1058–1063).

Under the latter the kingdom is conquered by the more powerful taifa of Seville, led by Abbad II al-Mu'tadid.During the so-called second taifa period which follows the fall of the Almoravid Empire, Silves is the seat of a second, ephemeral taifa, which lasts from 1145 to 1150, when it is conquered by the Almohads.