Lake Joyce () is a lake which lies along the northern side of Taylor Glacier in Pearse Valley, Victoria Land, Antarctica. It is ) long, deep and is covered by of very clear ice. The lake was studied by the New Zealand Victoria University of Wellington Antarctic Expedition (1963âÂÂ64) which named it after Ernest Joyce, a member of earlier British expeditions to the area led by Scott (1901âÂÂ04) and Shackleton (1907âÂÂ09).
The lake bottom is covered by thick microbial mats, from which rise microbialite carbonate structures.