An English-born singer-songwriter known for his light tenor vocals and songwriting contributions in pop group the Hollies and folk-rock band Crosby, Stills, Nash (& Young), and as a photography collector and photographer.

Born in Blackpool, Nash began singing in local pubs at the age of 14 with his pal Allan Clarke in a style heavily influenced by the Everly Brothers.

They soon formed the Hollies (after Buddy Holly) and became one of the most commercially successful acts of the early 1960s, with hits including Bus Stop, On A Carousel and Carrie Anne. Although a key member of the group, he seldom sang lead vocals, although he did write many of the band's songs, usually in collaboration with Clarke. Nash was pivotal in the forging of a sound and lyrics showing an obvious hippie influence on the Hollies' album Butterfly, a collection that brought differing opinions concerning the band's musical direction. In 1966, the Hollies had the opportunity to record Two Yanks In Britain with the Everly Brothers, an experience Nash still considers a career highlight.

In 1968, after a visit to the USA during which he had been introduced to David Crosby in Laurel Canyon and had begun experimenting with drugs, Nash left the Hollies at the height of their fame to form a new group with Crosby and Stephen Stills, a threesome at first, and later a foursome with Neil Young. With them, he went on to even greater worldwide success.

Starting in 1972, Nash teamed with Crosby, the two continuing as a successful recording and performing duo until the more or less permanent reformation with Stills for the CSN album of 1977. The pair have released a number of albums.

Nash's solo career has often been shelved in favour of reunions on stage and in the studio. His debut solo album, Songs For Beginners (1971) is considered a classic of the singer-songwriter genre. 2002 marked the release of his 5th solo album, Songs For Survivors.

Nash became an early collector of photographs beginning in the 1970s. The sale of his collection in 1990 by Sotheby's became an important milestone in establishing the market for fine-art photography. Proceeds of the sale funded charitable causes and provided the means for Nash to co-found Nash Editions, a digital fine-arts printmaking firm that used some of the most advanced scanning and printing equipment in early days and continues to operate today.

Nash is also a respectable photographer in his own right and has exhibited at the San Diego Museum of Photographic Arts.