Tiengna Viennoiserie is a bakery in Bangkok that sells French-style croissants and pastries. The menu includes plain and almond croissants made with Isigny butter, salt bread, brunch items, and coffee. There is seating on the second floor, outdoor seats, and a self-service bar with a water dispenser, which makes it workable for sitting alone with a laptop. Desserts and drinks are on the expensive side considering Bangkok prices.