Eustace of Fauconberg
|Bishop of London|
|Elected||26 February 1221|
|Term ended||October 1228|
|Predecessor||William of Sainte-Mère-Eglise|
|Other post(s)||Prebendary of Holbourn|
|Consecration||25 April 1221|
|6th Lord High Treasurer|
4 November 1217 – 1228
|Preceded by||William of Ely|
|Succeeded by||Walter Mauclerk|
Eustace of Fauconberg was a medieval English Bishop of London from 1221 to 1228 and was also Lord High Treasurer.
Eustace was the son of Walter de Fauconberg of Rise-in-Holderness in the East Riding of the English county of Yorkshire.
Eustace was selected as treasurer in 1217, probably on 4 November, and held the office until his death. He held the prebend of Holbourn in the diocese of London before being elected to the see of London on 26 February 1221 and consecrated on 25 April 1221.
Eustace died between 24 and 31 October 1228. There was a tomb memorial to him in the quire at Old St Paul's Cathedral.