Solaris is a Polish science fiction novel by Stanisław Lem (1921-2006), published in Warsaw in 1961 and probably his most famous work. The novel uses remote space exploration as a metaphor by which to examine the secret, often guilty thoughts of men, which in the novel are given physical form and which invade the spacecraft, disturbing the routine. The novel is pervaded by a powerful and moving poetic sense of remoteness and loneliness.

Solaris (, Solyaris) is a 1972 Russian film based on the novel Solaris by Polish author Stanisław Lem. It is directed by acclaimed Soviet director Andrei Tarkovsky.

Solaris is the third album by British drum and bass artist Photek. It was released on September 19, 2000 on the Virgin Records sublabel Science in Europe and on Astralwerks in the US.

Solaris was founded in 1974 in Longueuil (Québec) by Norbert Spehner, Solaris is the oldest French-language Science-fiction and Fantasy magazine in the world. In fact, it may very well even be the third longest-running fiction-publishing SF magazine in the World, after Astounding Stories/Analog (1930) and the The Magazine of Fantasy & Science Fiction (1949).

Solaris is a 2002 film directed by Steven Soderbergh. It is based on the science fiction novel by Stanisław Lem. The same book inspired the critically-acclaimed Soviet film Solaris, directed by Andrei Tarkovsky.