Places
* Koyama (island), an island part of the Bajuni Islands archipelago in the Indian Ocean *People
*, Japanese actress * Andy Koyama (born 1962), Canadian sound engineer * Chire Koyama (born 1964), Chinese-Japanese former table tennis world champion *, member of Hinoi Team, a former Japanese female pop group *, Japanese botanist *, Japanese Astronomer *, Japanese musician *, Japanese football player *, Japanese voice actress *, Japanese composer for orchestras, vocal and traditional Japanese instrumentation *, Japanese Protestant Christian theologian *, Japanese veteran voice actress and J-pop vocalist *, Japanese baseball player *, Japanese racing driver *, Japanese voice actress *, Japanese ice hockey player *, Japanese actor and voice actor *, Japanese film director *, Japanese baseball player *, Japanese mathematician *, Japanese former middle-distance runner *, Japanese screenwriter and novelist *, Japanese football player *, Japanese football player * Tetsuo Michael Koyama (1933–2024), Japanese botanist and collector *, Japanese pair skater *, Japanese motorcycle road racer *, Japanese volleyball player *, Japanese Go player *, Japanese manga artist *, Japanese baseball playerOther
* 3383 Koyama, a main-belt asteroid discovered in 1951 * Koyama's spruce (''Picea koyamae''), a tree species found in Japan * Koyama Press, a Canadian publisherSee also
* Oyama (disambiguation) *