Hanna Carolina Alström (born 5 March 1981) is a Swedish actress best known for starring in Kingsman: The Secret Service and its sequel Kingsman: The Golden Circle as Crown Princess Tilde of Sweden.
When Alström was six, she appeared in Staffan Götestam's play Gränsland at Puckteatern and at the Gröna Lund Theatre.
Later she played some child roles at the Royal Dramatic Theatre.
She studied at Sankt Eriks gymnasium and later at the Swedish National Academy of Mime and Acting.
In 2022 she played Mohamed Al-Fayed's wife Heini Wathén in the fifth season of The Crown.