Hikaru can be written using different kanji characters and can mean:

• 光, "light"
• 輝, "radiance"

The name can also be written in hiragana or katakana. It is more common for girls named Hikaru to only have hiragana in their name without kanji.

• Hikaru Akao (赤尾ひかる, born 1995), Japanese voice actress
• Hikaru Aoyama (青山 ひかる, born 1993), Japanese gravure idol and tarento
• Hikaru Arai (新井 光, born 1999), Japanese footballer
• Hikaru Asami (ひかる, born 1972), Japanese performing artist and a former member of the Takarazuka Revue
• Hikaru Ezaki (江崎 ひかる, born 2004), Japanese K-pop idol, a member of Kep1er
• Hikaru Fujii (藤井光, born 1976), Japanese artist
• Hikaru Hayashi (林 光, 1931–2012), Japanese classical composer, pianist and conductor
• Hikaru Hironiwa (広庭 輝, born 1985), former Japanese soccer player
• Inoue Hikaru (井上 光, 1851–1908), Japanese general
• Hikaru Ito (伊藤 光, born 1989), Japanese baseball player
• Hikaru Kawabata (川畑 輝鎮, born 1965), Japanese professional wrestler
• Hikaru Kojima, (born 1994) Japanese association football player
• Hikaru Kotobuki (光, born 1964), Japanese electronic musician
• Hikaru Koyama (ひかる, born 1991), member of Hinoi Team and Love & Peace
• Hikaru (singer, born 1987) (ヒカル), Japanese singer and member of the J-pop group Kalafina
• Hikaru Midorikawa (光, born 1968), Japanese voice actor
• Hikaru Mizuno (水野 輝, born 1991), Japanese footballer
• Hikaru Morita (森田 ひかる, born 2001), Japanese idol, a member of Sakurazaka46
• Hikaru Nakamura (光, born 1987), American chess Grandmaster
• Hikaru Nakamura (中村 光, born 1984), Japanese manga artist
• Hikaru Naomoto (猶本 光, born 1994), Japanese women's footballer
• Hikaru Nishida (ひかる, born 1972), Japanese J-pop singer and actress
• Hikaru Ōe (光, born 1995), Japanese snowboarder
• Hikaru Saeki (光, born 1943), Japanese admiral, the first female star officer of the Japan Self-Defense Forces
• Hikaru Sato (光留, born 1980), Japanese professional wrestler and mixed martial artist
• Hikaru Shida (光, born 1988), Japanese professional wrestler and actress
• Hikaru Tanaka (田中 光, born 1972), Japanese gymnast
• Hikaru Tomokiyo (友清 光, born 1998), Japanese judoka
• Hikaru Utada (ヒカル, born 1983), Japanese-American singer, songwriter, arranger, and producer
• Hikaru Yamamoto (山本 ひかる, born 1991), Japanese actress
• Hikaru Yamashita (山下 光, born 2000), Japanese ice hockey player
• Hikaru Yaotome (光, born 1990), Japanese idol, singer, actor, songwriter, dancer, and member of Hey! Say! JUMP

• Hikaru (ヒカル), a character in Angelic Layer
• Hikaru Osari (王茶利暉), a character in B-Project
• Hikaru (Jimmy) (ヒカル), a character in Ape Escape 2
• Hikaru (光), a character in Exo-Force
• Hikaru (ひかる), a character in Parodius
• Hikaru (ヒカル), a character in Princess Ai
• Hikaru (ヒカル), a character in Seijuu Sentai Gingaman
• Hikaru Amano (ヒカル), a character in Martian Successor Nadesico
• Hikaru Genji (光源氏), a character in The Tale of Genji
• Hikaru Gosunkugi (光), a character in Ranma ½
• Hikaru Hasama (光), a character in Beyblade: Metal Fusion
• Hikaru Hibino (ひかる), a character in Hime-chan no Ribbon
• Hikaru Hoshina (ひかる), also known as Cure Star, the protagonist of Star Twinkle PreCure
• Hikaru Hoshino (光), a character in Time Patrol Tai Otasukeman
• Hikaru Hitachiin (光), a character in Ouran High School Host Club
• Hikaru Hiyama (ひかる), a character in Kimagure Orange Road
• Hikaru Ichijyo (輝), a character in Macross
• Hikaru Ichinomiya (ひかる), a character in Shugo Chara!, aka Gozen
• Hikaru Jo (光), a character in Kamen Rider Blade, the human guise of the Tiger Undead
• Hikaru Kamiki (カミキヒカル), the main antagonist in manga and anime series Oshi no Ko
• Hikaru Katsuragi (ひかる), a character in Choudenshi Bioman
• Hikaru Koizumi (小泉光るなら), a main character in Ani-Imo
• Hikaru Kosaka (ひかる), a character in The Brave Fighter of Legend Da-Garn
• Hikaru Kujou (ヒカル), a character in Futari wa Pretty Cure MaX Heart
• Hikaru Makiba (ひかる), a character in Grendizer
• Hikaru Matsuyama (光), a character in Captain Tsubasa
• Hikaru Mizuki (ひかる), a character in Kirarin Revolution
• Hikaru Nagomi (ひかる), a character in Delicious Party Pretty Cure
• Hikaru Nanjou (光), a character in The Idolmaster Cinderella Girls
• Hikaru Narita (輝), a character in Hot Gimmick
• Hikaru Raido (ヒカル), a character in Ultraman Ginga
• Hikaru Shidou (光), a character in Magic Knight Rayearth
• Hikaru Shindou (ヒカル), a character in Hikaru no Go
• Hikaru Shinjou (ひかる), a character in the Gyakuten Saiban manga
• Hikaru Sorano (ひかる), a character in Codename wa Sailor V
• Hikaru Sulu, a character in Star Trek
• Hikaru Tonetti (ヒカル), a character in School House
• Thunder Warrior Hikaru of Seijuu Sentai Gingaman
• Hikaru Usada (ヒカル), a character in Di Gi Charat
• Minamoto no Hikaru (光), the main character within Otogizōshi
• Sungel/Sunjiel (aka MagiShine), of Mahou Sentai Magiranger (often referred to as "Hikaru-sensei")
• The Figure Hikaru of Figure 17

• Sega Hikaru, an arcade game platform
• Sony Ericsson W995, previously known as Hikaru

• All pages with titles beginning with Hikaru
• All pages with titles containing Hikaru