MC Lothlorien, also commonly known as Lothlorien, was a video games developer and publisher based in United Kingdom. The company was founded in 1982 and initially specialised in developing software for the ZX Spectrum and BBC Micro computer formats.

The company was associated in its early days with computer wargaming, with Johnny Reb and Redweed being two early games of that genre produced for the ZX Spectrum.

M.C. Lothlorien had possible ties with the Argus Press Software Group. This can be seen on titles like Dark Empire, Bulge, Nether Earth (check titles for logos) and that they had same address as APSG.