:Masanobu Okubo

{{short description|Japanese baseball player}}

{{Infobox baseball biography

| name = Masanobu Okubo

| image = OB-Masanobu-Okubo.jpg

| image_size = 250

| caption =

| team =

| number =

| position = Pitcher

| birth_date = {{Birth date and age|1976|9|13}}

| birth_place = Hidaka District, Wakayama, Wakayama, Japan

| bats = Right

| throws = Right

| debutleague = NPB

| debutdate = April 9

| debutyear = 2001

| debutteam = Orix BlueWave

| finalleague = NPB

| finaldate = May 29

| finalyear = 2010

| finalteam = Orix Buffaloes

| statyear = 2010

| statleague = NPB

| stat1label = Win–loss record

| stat1value = 16-20

| stat2label = Saves

| stat2value = 63

| stat3label = ERA

| stat3value = 3.23

| stat4label = Strikeouts

| stat4value = 276

| teams =

• Orix BlueWave/Orix Buffaloes ({{npby|2001}}–{{npby|2010}})

| awards =

• 2001 Pacific League Rookie of the Year

| update = 8 February 2014

}}

Masanobu Okubo (大久保 勝信; born September 13, 1976, in Hidaka District, Wakayama, Japan) is a former Nippon Professional Baseball pitcher.