The Teatro Lethes is a historic theatre located in the heart of Faro, a city in the Algarve region of southern Portugal. The theatre was built in the late 19th century and has been an important cultural landmark in Faro ever since, hosting a wide variety of theatrical performances, concerts, and other cultural events.

The theatre's grand façade is an impressive sight, with ornate stonework, intricate carvings, and a prominent clock tower that serves as a landmark for the surrounding area. Inside, the theatre is equally impressive, with a grand auditorium that can seat up to 500 people, as well as a smaller studio theatre that can accommodate more intimate performances.