Katrin Välbe (until 1929 Jekaterina Poska; October 31, 1904 – July 5, 1981) was an Estonian actress. Katrin Välbe was born Jekaterina Poska in Võru to Gabriel and Lydia Poska. Her father was a lawyer and her uncles included statesman Jaan Poska, politician Mihkel Poska, and Estonian Apostolic Orthodox Church clergymen Nikolai and Paul Poska.