Swan Song, published in 1928, is the third novel in John Galsworthy's trilogy A Modern Comedy. A Modern Comedy is a sequel to The Forsyte Saga, written in the years 1924 to 1928. In 2003, The Forsyte Saga was listed on the BBC's The Big Read poll of the UK's "best-loved novel".

The Forsyte Saga chronicles the vicissitudes of the leading members of a large commercial upper middle-class English family. Only a few generations removed from their farmer ancestors, the family members are keenly aware of their status as "new money". A titanic masterpiece - nine hundred pages of a multi-generational story of a fictional English family that spans the Victorian, Edwardian, and post-World War I eras. It's the story of the Forsyte family, spanning several generations and several wars, and its obsession with "property."

A Modern Comedy comprises a novel, The White Monkey, an interlude, A Silent Wooing, a second novel, The Silver Spoon, a second interlude, Passers By, and a third novel Swan Song. The principal characters are Soames and Fleur.

After the first trilogy, The Forsyte Saga, Galsworthy wrote two additional sequels (also each a trilogy); A Modern Comedy and End of the Chapter, which form what is commonly referred to as The Forsyte Cronicles.

John Galsworthy was an English novelist and playwright. He won the Nobel Prize for literature in 1932. The Nobel committee usually gives the prize for a lifetime of work, but in their decision, they specifically noted that Galsworthy deserved the prize “for his distinguished art of narration which takes its highest form in The Forsyte Saga.”