Momoko Kobori

is a Japanese tennis player. She has career-high WTA rankings of world No. 226 in singles, achieved on 22 April 2019, and No. 89 in doubles, achieved on 30 March 2026. She has won four singles titles and 27 doubles titles on the ITF Circuit.

Career Kobori made her WTA Tour main-draw debut at the 2017 Japan Women's Open, after receiving a wildcard alongside Erina Hayashi into the doubles tournament.

WTA Tour finals Doubles: 1 (runner-up) LegendWTA 1000 WTA 500 WTA 250 (0–1)Finals by surfaceHard (0–1)Clay (0–0) ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreLoss 0–1 Hong Kong Open, China SAR WTA 250 Hard Peangtarn Plipuech Jiang Xinyu Wang Yafan 4–6, 2–6

WTA 125 finals Doubles: 3 (3 runner-ups) ResultW–LDateTournamentSurfacePartnerOpponentsScoreLoss 0–1 Palermo Ladies Open, Italy Clay Ayano Shimizu Estelle Cascino Feng Shuo 2–6, 7–6(7), [7–10]Loss 0–2 Huzhou Open, China Clay Ayano Shimizu Veronika Erjavec Zhibek Kulambayeva 4–6, 2–6Loss 0–2 Antalya Challenger, Turkey Clay Peangtarn Plipuech Iryna Shymanovich Maria Kozyreva 5–7, 1–6

ITF Circuit finals Singles: 9 (4 titles, 5 runner-ups) LegendW25/35 tournamentsW15 tournamentsFinals by surfaceHard (1–2)Carpet (3–3)

Doubles: 52 (28 titles, 24 runner-ups) LegendW100 tournamentsW60/75 tournamentsW40/50 tournamentsW25/35 tournamentsW10/15 tournamentsFinals by surfaceHard (19–17)Clay (4–0)Grass (1–0)Carpet (4–7)