Cancer is a large class of malignant diseases.

Cancer may also refer to:

People with the surname Dinah Cancer (born 1960), American punk rock musician Luis Cáncer (1500–1549), Spanish Dominican missionary Jerónimo de Cáncer (c. 1599 – 1655), Spanish playwright

Astronomy and astrology Cancer (astrology), an astrological sign Cancer (Chinese astronomy), a constellation in Chinese astronomy Cancer (constellation), a constellation in astronomy

Arts, entertainment, and media Music Cancer (band), a British death metal band Cancer (Confession album) Cancer (My Disco album) Cancer (Showbread album) "Cancer" (song), a song by My Chemical Romance "Cancer", a song by Filter from Title of Record "Cancer", a song by Joe Jackson from Night and Day "Cancer", a song by Sick Puppies from Dressed Up as Life "Cancer", a song by Subhumans from Reasons for Existence "Cancer", a song by The Devil Wears Prada from Color Decay

Other uses in arts, entertainment, and media Cancer (comics), a character in the Marvel Universe Cancer (film), a 2015 American documentary film Cancer (journal), an academic journal about the disease Cancer (Transformers), a character in the Transformers universes

Other uses Cancer (genus), a genus of crab Cancer (mythology), a giant crab in Greek mythology CANCER, an electronic circuit simulator and predecessor of SPICE

See also 55 Cancri, a star system in which NASA has discovered five planets Kancer, a fictional character from DC Comics Kansar, an Indian dessert Tropic of Cancer (disambiguation) Tumour Malignant (disambiguation)