right|300px|thumb|Weldon and neighboring South Lake sit on the southeast tip of the Lake Isabella, in the picture at far left
Weldon is a census-designated place (CDP) in Kern County, California, United States. It sits at the southeast tip of Lake Isabella. Weldon is located east-southeast of Wofford Heights, at an elevation of .
The 1941 western film Doomed Caravan was partially filmed in Weldon. Other movies filmed here include Borderland (1937), In Old Mexico (1938) and Hidden Gold (1940).