Karats, Auction village in Norrbotten County, Sweden

Karats (Northern Sami: Gárásj) is a mountain lake in Norrbotten County, Lappland, west of Jokkmokk. It covers 59.7 square kilometres, reaches a depth of 31.5 metres and lies 414 metres above sea level. Its outflow, the Pärl River, carries its water to the Little Lule River.

Karats is a natural mountain lake, not a settlement, so it has no founding history. Its recorded past is cartographic and hydrological: Swedish surveys mapped its 59.7 square kilometre surface at 414 metres above sea level and its 31.5 metre depth, and SMHI defined the Utloppet av Karatj sub-basin around it, with a mean elevation of 482 metres.

Karats is the Swedish form; the lake is Gárásj in Lule Sami, the language spoken around Jokkmokk, not Southern Sami. The name appears on maps in both forms, and the water flows out through the Pärl River into the Small Lule River.

Karats lies west of Jokkmokk in Lappland, at 414 metres above sea level; the lake covers 59.7 square kilometres and reaches 31.5 metres deep. It drains through Pärl River into the Small Lule River, so the surrounding catchment is mostly forest. Access is by trail or boat, not by road to the shore.

Karats drains through the Pärl River into the Small Lule River, and that outflow gives its name to the SMHI sub-basin "Utloppet av Karatj", which covers 222.51 square kilometres with a mean elevation of 482 metres. Water from the lake passes through three watercourses before reaching the sea, 251 kilometres downstream.