GCA may refer to:
== Education == Cayman Islands Grace Christian Academy (Cayman Islands) India Government College, Ajmer, Rajasthan Government College of Architecture in Lucknow Guwahati College of Architecture, in Assam United Kingdom Greig City Academy, in London United States Gahanna Christian Academy, in Columbus, Ohio Garland Christian Academy, in Garland, Texas Georgia-Cumberland Academy, in Calhoun, Georgia Global Communications Academy, in Hartford, Connecticut Granville Christian Academy, in Granville, Ohio Greenbrier Christian Academy, in Chesapeake, Virginia
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).