The Butcher of Amritsar: General Reginald Dyer is a 2006 historical biography written by Nigel Collett, a former Gurkha officer, which covers the life of Reginald Dyer. The book's title refers to the 1919 massacre at Jallianwala Bagh in which 379 people were shot by troops under the command of Dyer. It is the second biography written on Dyer, the first having been written in the 1930s with co-operation from Dyer's widow.