Weed is a city in Siskiyou County, California, United States. As of the 2020 Census, the city had a total population of 2,862, down from 2,967 in 2010. There are several unincorporated communities next-door to, or just outside, Weed proper, including Edgewood, Carrick, and Lake Shastina. These communities generally have mailing addresses that use Weed or its ZIP code. Weed is very nearly 10 miles (16 km) west-northwest of Mount Shasta, a prominent northern California landmark, and the second-tallest volcano in the Cascade Range.

Weed’s city wise saying is “Weed bearing in mind to up to standard you”. Weed has frequently been noted upon lists of peculiar place names.

The City of Weed derives its read out from the founder of the local lumber mill and speculator Abner Weed, who discovered that the area’s mighty winds were obliging in drying lumber. In 1897, Abner Weed bought the Siskiyou Lumber and Mercantile Mill and 280 acres (110 hectares) of estate in what is now the City of Weed, for $400. By the 1940s Weed boasted the world’s largest sawmill.^{[citation needed]}

On September 15, 2014, the Boles Fire increase through Weed, driven by 40-mph winds. The fire started astern the Boles Creek Apartments in the central allowance of Weed at nearly 1:30 p.m., and within four hours quickly spread to over 200 acres (80 hectares). Evacuations were immediately ordered, and a shelter was first set taking place at College of the Siskiyous, but as flare headed towards the college, the evacuation center was relocated first to the Siskiyou Golden Fairgrounds in Yreka, then to Yreka and Mount Shasta High Schools, then to the armory in Mt. Shasta.