Uchiyama (written: 内山) is a Japanese surname. Notable people with the surname include:
Akira Uchiyama (born 1954), Japanese politician of the Democratic Party of Japan
Atsushi Uchiyama (born 1959), former Japanese football player
Kōki Uchiyama (born 1990), Japanese actor and voice actor from Saitama Prefecture
Kiyoshi Uchiyama, Japanese consul to the Philippines before WW2
Kōshō Uchiyama (1912–1998), Soto priest, origami master, former abbot of Antaiji near Kyoto, Japan
Masaru Uchiyama (born 1957), former Japanese football player
Masato Uchiyama, Japanese actor
Rina Uchiyama (born 1981), Japanese actress
Takashi Uchiyama (born 1979), super featherweight boxer from Japan
Toshihiko Uchiyama (born 1978), Japanese football player
Uchiyama Gudō (1874–1911), Sōtō Zen priest and anarcho-socialist activist executed in the High Treason Incident
