Bris Rock (, ) is the rock off the northwest coast of Nelson Island in the South Shetland Islands, Antarctica extending 70 m in southâÂÂnorth direction and 60 m in westâÂÂeast direction. Its surface area is 0.21 ha. The vicinity was visited by early 19th century sealers.
The feature is named after the Bris sextant invented by the Swedish sailor and writer Sven Yrvind; in association with other names in the area deriving from the early development or use of geodetic instruments and methods.
Bris Rock is located at , which is 1.41 km west-northwest of Retamales Point, 2 km northeast of Smilets Point and 2.1 km southwest of Withem Island. British mapping in 1968.