ISEA may refer to:

Icosahedral Snyder Equal Area, see geodesic grid Independent Schools Education Association Institute for Social and Economic Analyses Inter-Society for the Electronic Arts (now ISEA International) International Safety Equipment Association, formerly the Industrial Safety Equipment Association International Society of Exposure Analysis (ISEA), now International Society of Exposure Science ISEA (Int'l Space Exploration Agency), in the TV series Extant ISEA International, organization that coordinates the annual International Symposium on Electronic Art International Sustainable Energy Assessment, see Energy and Environmental Security Initiative Island South-East Asia or Maritime Southeast Asia

People Rafael Isea (born 1968), Venezuelan politician

See also Institute of Southeast Asian Studies (ISEAS), see Singapore Think Tanks