Karabash Reservoir

Infobox lake
lake_name = Karabash Reservoir
image_lake =
caption_lake =
image_bathymetry =
caption_bathymetry =
location = Tatarstan
coords =
type = reservoir
inflow =
outflow =
catchment =
basin_countries = Russia
length = 8.7 km
width =
area = 7.31 km²
depth = 7.2 m
max-depth =
volume = convert|52300000|m3|abbr=on
residence_time =
shore =
elevation =
islands =
cities =
frozen =

Karabash Reservoir ( _ru. Карабашское водохранилище, _tt. Карабаш сусаклагычы|Qarabaş susaqlağıçı) is a reservoir of the upper Zay River near Karabash, Tatarstan, Russian Federation. It was filled in 1957 for the local oil and other industry needs. It has surface area 7.31 km², a length 8.7 km, mean depth 7.2 m and a volume 52.3 million cubic meters.