| Kim Dong-su | |
| Fullname: | Kim Dong-su[1] |
| Birth Date: | 21 February 1995 |
| Birth Place: | Jeonju, South Korea |
| Height: | 1.88 m |
| Position: | Centre-back |
| Currentclub: | Busan IPark |
| Clubnumber: | 3 |
| Youthclubs1: | Hamburger SV |
| Years1: | 2014–2016 |
| Clubs1: | Hamburger SV II |
| Caps1: | 46 |
| Goals1: | 2 |
| Years2: | 2017–2018 |
| Clubs2: | Omiya Ardija |
| Caps2: | 0 |
| Goals2: | 0 |
| Years3: | 2019–2021 |
| Clubs3: | VfB Lübeck |
| Caps3: | 7 |
| Goals3: | 0 |
| Years4: | 2021–2022 |
| Clubs4: | Hoang Anh Gia Lai |
| Caps4: | 13 |
| Goals4: | 0 |
| Years5: | 2022– |
| Clubs5: | Busan IPark |
| Caps5: | 4 |
| Goals5: | 0 |
| Club-Update: | 20:57, 24 September 2023 (UTC) |
Kim Dongsu is a South Korean footballer who plays as a centre-back for Busan IPark in the K League 2.
In January 2014, moved from South Korea to Hamburg to the U-19 of Hamburger SV. After five junior Bundesliga games, he made the leap to the B-team, Hamburger SV II, half a year later and was there regulars of the strong regional league team, which marched unbeaten through the first round.
Kim joined J1 League club Omiya Ardija in 2017. On 6 June 2018, he debuted against AC Nagano Parceiro in Emperor's Cup.[2]
On 31 January 2019, Kim moved to Germany again and this time, he signed with VfB Lübeck until June 2020.