In Chang-soo

{{short description|South Korean footballer and coach}}

{{Use dmy dates|date=September 2024}}

{{Infobox football biography

| name = In Chang-soo

| fullname =

| birth_date = {{birth date|df=yes|1972|11|23}}

| birth_place = Seoul, South Korea

| death_date =

| height =

| currentclub =

| position = Defender

| youthyears1 = | youthclubs1 =

| years1 = 1994–1995 | clubs1 = E-Land Puma | caps1 = | goals1 =

| nationalyears1 = | nationalteam1 = | nationalcaps1 = | nationalgoals1 =

| manageryears1 = 2008 | managerclubs1 = Ansan Hallelujah (caretaker)

| manageryears2 = 2013–2015 | managerclubs2 = Pocheon Citizen

| manageryears3 = 2016 | managerclubs3 = Seoul E-Land (caretaker)

| manageryears4 = 2017–2018 | managerclubs4 = Seoul E-Land

| medaltemplates =

| pcupdate =

| ntupdate =

}}

In Chang-soo ({{Ko-hhrm|인창수}}; born 23 November 1972) is a former South Korean footballer and coach. He holds Argentine citizenship.

In was born in South Korea. When he was a child, he emigrated to Argentina. His Argentine name is Diego.[https://sports.news.naver.com/kfootball/news/read.nhn?oid=343&aid=0000079198 시메오네 꿈꾸는 한국의 ‘디에고’ 인창수]