贺德威克（英语：Herdwick）是一种产于英格兰西北部湖区的绵羊，其中95%分布于福内斯山区。

种名在古诺尔斯语的意思是「绵羊草场」的意思。此种出生的时候呈黑色，随成长逐渐退去。此种虽然产羔率低、毛质亦不及商业用品种，但也有体格强健、地域性强、对粗陋饲料有高耐受性的优点。

此种在2001年遭受口蹄病的严重威胁，幸因其具地方特色受到保育因而幸存。著名儿童文学作家碧雅翠丝·波特也是此种的繁殖专家，其繁殖的羊甚至在坎布里亚郡比赛中多次获奖。她在1943年逝世时把4,000英亩（16平方公里）的农场捐给国家名胜古迹信托，并指定继续繁殖这些绵羊。

The Herdwick is a breed of domestic sheep native to the Lake District of Cumbria in North West England. The name "Herdwick" is derived from the Old Norse herdvyck, meaning sheep pasture. Though low in lambing capacity and perceived wool quality when compared to more common commercial breeds such as Merino sheep, Herdwicks are prized for their robust health, their ability to live solely on forage, and their tendency to be territorial and not to stray over the difficult upland terrain of the Lake District. It is considered that up to 99% of all Herdwick sheep are commercially farmed in the central and western Lake District.