Bryson's Dictionary of Troublesome Words (ISBN 0-7679-1043-5) is a book by Bill Bryson, published under several titles since 1984, that catalogues some of the English language's most commonly misused words and phrases in order to demonstrate preferable usage.

It was first published in 1984 with the title The Penguin Dictionary of Troublesome Words (ISBN 014051130X) in the United Kingdom and with the title The Facts on File Dictionary of Troublesome Words (ISBN 0871968894) in the United States.

Like all other major usage advice books, it reflects the language epistemology of professional editors, which is not completely coincident with that of linguistic scientists.

[1] It makes use of both linguistic prescription and linguistic description, attempting to avoid the pathological extremes of prescription (valueless pedantry such as hypercorrection) while also making use of its helpful side (which encourages critical thinking).

Bryson describes the English language as a valuable entity, with no two experts agreeing on any point of usage, claiming that those guides that do exist for the common user often expect the reader to be familiar with grammatical terms not encountered since (or even at) high school.