吉耶蒙（法语：Guillemont）是法国皮卡第大区索姆省的一个市镇，属于佩罗讷区孔布勒县。该市镇2009年时的人口为128人。

吉耶蒙人口变化图示

数据来源：INSEE

Guillemont is a commune roughly 13 km (8.1 mi) east of Albert in the Somme department in Picardie in northern France.

It, like much of the surrounding area, is primarily an agricultural community, but is known for its large cemetery, which has become a tourist attraction. The cemetery began as a field graveyard after the Battle of Guillemont, but was quickly expanded after the Armistice when graves from surrounding areas were centralized here.