Sanni Mari Elina Kurkisuo (born 26 May 1993), better known by her mononym Sanni, is a Finnish singer, songwriter and actress signed to Warner Music Finland. Kurkisuo is known for her personal style, and is generally considered as one of Finland's most popular artists. She is the most listened female artist on Spotify in Finland, and has won three Emma awards out of 17 total nominations.
In 2001, she won the Napero-Finlandia prize for a writing competition. In 2012, she graduated from Sibelius-lukio arts school. The same year, she appeared in a role in the Finnish film Miss Farkku-Suomi.
She has also pursued a musical career and was in a number of bands since the age of 13. She was featured on "Pumppaa", a single by Aste. She released her first solo single "Prinsessoja ja astronautteja" in April 2013. It peaked at number three on The Official Finnish Charts. Her debut album Sotke mut was released in 2013.
On 13 February 2015, she released a single, "2080-luvulla". Her second studio album Lelu, was released on 24 April 2015. She participated in the fourth season of the Finnish music reality show Vain elämää.
On 7 October 2016, she released her third eponymous album Sanni.
Sanni lived together with her girlfriend, Finnish model, radio host and beauty pageant titleholder Shirly Karvinen in Helsinki, Finland. They broke up in 2025.