Silver Lake is a lake in Lake County, Oregon, United States. It is 6 miles (10 km) east of the community of Silver Lake. It is unknown who first gave the lake its descriptive name. Central Oregon residents attribute it to John C. Frémont, although no proof has been found, and he would not have seen the lake on his first visit to Oregon in 1843. The Klamath called the lake Kalpshi, which may have been derived from the word kalapsh, meaning a decayed log.