Veikko Olavi "Vexi" Salmi (Finnish pronunciation: [ˈʋeksi ˈsɑlmi]; 21 September 1942 – 8 September 2020) was a Finnish lyricist. He wrote the lyrics to numerous popular songs for several prominent artists, including Irwin Goodman, Jari Sillanpää, and Katri Helena. His career as a lyricist began in the 1960s, and continued until his death. During his prolific career, he wrote the lyrics for over 4,000 songs, more than 2,400 of which have been recorded. In addition to song lyrics, he authored several novels and one collection of poetry. Salmi's latest work also included collaborating with Ilkka Lipsanen on a 60th anniversary album, and he also acted as a judge on a television program on music lyrics, Biisikärpänen

Salmi was awarded the Juha Vainio Writer's Award in 1993 for his long and successful career as a lyricist. Another music writer's award, the Vexi Salmi Award, was named after him in 2003.