Unspiek, Baron Bodissey, is a fictional creation referred to in many of the novels of speculative-fiction author Jack Vance. The Baron never appears in any work, but his monumental, many-volume work Life is frequently quoted in sometimes more and sometimes less obviously apposite connections at the heads of chapters (isolated passages, often long, as chapter-heading material are characteristic of Vance's unique style), and is occasionally referred to in passing by characters in the tales. Fictional reviews of Life also appear, usually dismissing it as snobbish, elitist and pretentious; one reviewer expresses a desire to thrash the Baron within an inch of his life before buying him a drink.

A page on Vance's speculative-fiction works that includes an extensive extract from the fictive Baron's magnum opus is available.