Okamoto (written: 岡本 lit. "hill origin") is the 48th most common Japanese surname.
First character, 岡 -
Readings - On: (kō); Kun: (oka);
n. 1. hill; height; knoll; rising ground; ridge or crest of hill.
Second character, 本 -
Readings - On: (hon); Kun: (moto);
n. 1. book. 2. present. 3. origin. 4. true; real; truth; reality. 5. main.
Note: This is the same character in Nihon [日本] also known as Nippon or Japan.
Anri Okamoto (born 1994), fashion model and an actress in Japan
Asami Okamoto (born 1974), female Japanese voice actress from Tokyo, Japan
Atsushi Okamoto (born 1981), professional Nippon Professional Baseball player
Aya Okamoto (born 1982), actress and voice actress
Ayako Okamoto (born 1951), Japanese professional golfer
Brett Okamoto, mixed martial arts journalist
Chizuko Okamoto (born 1951), Japanese woman who was convicted of killing her own daughter
Fuji Okamoto (1905–1984), Japanese boxer
Haruko Okamoto (née Ishida, born 1945), Japanese figure skater
Hideya Okamoto (born 1987), Japanese football player
Hitoshi Okamoto, guitarist of the Japanese pop band Garnet Crow
Keito Okamoto (born 1993), Japanese singer and member of the J-pop group Hey! Say! JUMP
Kihachi Okamoto (1924–2005), Japanese film director
Kōzō Okamoto (born 1947), member of the Japanese armed militant group, Japanese Red Army (JRA)
Kumiko Okamoto (born 1965), retired female tennis player from Japan
Lynn Okamoto, male manga artist and a former employee of Bandai
Mariko Okamoto (born 1951), Japanese volleyball player
Masahiro Okamoto (born 1983), Japanese football player
Maya Okamoto (born 1967), in Shinjuku, Tokyo, is a voice actor
Mayo Okamoto (born 1974), Japanese singer-songwriter
Mike Okamoto (born Detroit, United States), is an American comic book artist and commercial illustrator
Mitsunori Okamoto (born 1971), Japanese politician of the Democratic Party of Japan
Mori Okamoto, actor
Natsuki Okamoto (born 1989), Japanese fashion model and actress
Nobuhiko Okamoto (born 1986), male Japanese voice actor from Tokyo, Japan
Okamoto Kanoko (1889–1939), pen-name of a Japanese author, tanka poet, and Buddhism scholar
Okamoto Kido (1872–1939), Japanese author
Rai Okamoto (1927–1993), American architect, planner, and author
Rei Okamoto (born 1991), Japanese model and actress
Tao Okamoto, (born 1985), Japanese model and actress
Tarō Okamoto (1911–1996), Japanese artist noted for abstract and avant-garde paintings and sculpture
Tetsuo Okamoto (1932–2007), Brazilian swimmer
Tomotaka Okamoto (born 1976), Japanese sopranist
Tomotaka Okamoto (footballer) (born 1990), Japanese football player
Vincent Okamoto (born 1943), American Army officer
Yasuaki Okamoto (born 1988), Japanese football player
Yoriko Okamoto (born 1971), first Japanese athlete to become an Olympic taekwondo medalist
Yoichi Okamoto (1915–1985), American photographer
Yoshiki Okamoto (born 1961), video game designer credited with producing many of Capcom's popular titles
Yoshiro Okamoto (born 1943), Japanese politician of the Liberal Democratic Party
Yukiko Okamoto (born 1979), Japanese actress