Taichi Ishiyama

{{short description|Japanese baseball player}}

{{Infobox NPB player

|name=Taichi Ishiyama

|image=Gk ryoDSC 96642.jpg

|image_size=250

|caption=Ishiyama in 2018 with the Tokyo Yakult Swallows

|position=Pitcher

|team=Tokyo Yakult Swallows

|number=12

|bats=Right

|throws=Right

|birth_date={{Birth date and age|1988|9|1}}

|birth_place=Akita, Akita, Japan

|debutleague=NPB

|debutdate=April 14

|debutyear=2013

|debutteam=Tokyo Yakult Swallows

|finalleague=

|finaldate=

|finalyear=

|finalteam=

| statyear = 2024 season

| statleague = NPB

| stat1label = Win–loss

| stat1value = 29-39

| stat2label = ERA

| stat2value = 3.41

| stat3label = Strikeouts

| stat3value = 632

| stat4label = Saves

| stat4value = 90

| stat5label = Holds

| stat5value = 121

|teams=

• Tokyo Yakult Swallows ({{npby|2013}}–present)

|highlights=

• 2× NPB All-Star (2013, 2018)
• 1× Japan Series champion (2021)

}}

{{nihongo|Taichi Ishiyama|石山 泰稚|Ishiyama Taichi|extra=born September 1, 1988 in Akita, Akita, Japan}} is a professional Japanese baseball player. He plays pitcher for the Tokyo Yakult Swallows.

He was selected {{ill|2018 NPB All-Star game|jp|2018年のオールスターゲーム (日本プロ野球)}}.{{cite web| url=http://npb.jp/allstar/2018/roster.html | title=マイナビオールスターゲーム2018 出場者 | work=NPB.jp 日本野球機構 | language=Japanese | accessdate= | date=July 3, 2018 }} On October 10, 2018, he was selected Japan national baseball team at the 2018 MLB Japan All-Star Series,{{cite web| url=http://www.japan-baseball.jp/jp/news/press/20181010_1.html | title=「2018日米野球」に出場する侍ジャパントップチーム選手全28名が決定 | work=野球日本代表 侍ジャパン オフィシャルサイト | language=Japanese | date=October 10, 2018 | accessdate=October 14, 2018 }} but on October 26, 2018, he canceled his participation for Samurai Japan.{{ cite web | url=http://www.japan-baseball.jp/jp/news/press/20181026_3.html | title=「ENEOS侍ジャパンシリーズ2018」ならびに「2018日米野球」に出場するトップチームの出場選手の変更について | work=野球日本代表 侍ジャパン オフィシャルサイト | language=Japanese | date=October 26, 2018 | accessdate=December 5, 2018 }}