Ragnhild (Lalla) Hvalstad (1875–1962) was a Norwegian painter and ceramist. In 1894, she was one of ten artists who participated in the Vågåsommeren artists' colony in Vågå, Innlandet County. After painting portraits, interiors and landscapes, in 1922 she changed her focus to ceramics, studying in Faenza, Italy. On returning to Norway, she opened her own workshop in Bestum where together with she created a wide variety of pottery, frequently decorated with flowers and fruits.