Bruce S. Maccabee (May 6, 1942 – May 10, 2024) was an American optical physicist employed by the United States Navy, and a ufologist.

In 1979 he was instrumental in establishing the Fund for UFO Research (FUFOR) and was the chairman for about 13 years.

[8][9][10] Maccabee also carried out historical research and was the first to obtain the secret "flying disc file" of the FBI, what he called "the REAL X-Files".

Maccabee was the author or coauthor of about three dozen technical articles and more than a hundred trade articles about UFOs over the last 30 years, including many which appeared in the MUFON UFO Journal and MUFON Symposium proceedings.

Among his papers was a reanalysis of the statistics and results of the famed Battelle Memorial Institute Project Blue Book Special Report No.