Pia Merete Tjelta (born 12 September 1977, in Stavanger) is a Norwegian actress.

Tjelta graduated from the Norwegian National Academy of Theatre in 2006, but had already appeared in many films.

She entered the Norwegian National Academy of Theatre in 2000, but after taking a two-year maternity leave, she did not manage to graduate until 2006.

She made her stage debut in 2006 with the play Fyrverkerimakarens dotter at Det Norske Teatret.

In February 2007, she received much media coverage for her lead role in the Norwegian romantic comedy Mars og Venus.