| Robert Castellanos | |
| Fullname: | Robert Castellanos |
| Birth Date: | 11 May 1998 |
| Birth Place: | Palmdale, California, United States |
| Height: | 1.88m (06.17feet) |
| Position: | Defender |
| Youthyears1: | 2015-2016 |
| Youthclubs1: | Atlas |
| Youthyears2: | 2016-2017 |
| Youthclubs2: | América |
| Years1: | 2017 |
| Clubs1: | LA Galaxy II |
| Caps1: | 16 |
| Goals1: | 0 |
| Years2: | 2018–2020 |
| Clubs2: | Rio Grande Valley FC |
| Caps2: | 37 |
| Goals2: | 2 |
| Years3: | 2021–2022 |
| Clubs3: | Nashville SC |
| Caps3: | 1 |
| Goals3: | 1 |
| Years4: | 2022 |
| Clubs4: | → Tampa Bay Rowdies (loan) |
| Caps4: | 10 |
| Goals4: | 1 |
| Years5: | 2023 |
| Clubs5: | KuPS |
| Caps5: | 0 |
| Goals5: | 0 |
| Years6: | 2023–2024 |
| Clubs6: | Sporting Kansas City |
| Caps6: | 26 |
| Goals6: | 2 |
| Years7: | 2023 |
| Clubs7: | Sporting Kansas City II |
| Caps7: | 4 |
| Goals7: | 0 |
| Nationalyears1: | 2016 |
| Nationalteam1: | United States U20 |
| Nationalcaps1: | 2 |
| Nationalgoals1: | 0 |
| Club-Update: | November 14, 2024 |
| Nationalteam-Update: | April 14, 2017 |
Robert Castellanos (born May 11, 1998) is an American professional soccer player who is a free agent. He last played as a defender for Major League Soccer club Sporting Kansas City.
Castellanos was born in Palmdale, California and attended Palmdale High School.[1] On February 14, 2017, he signed with United Soccer League club LA Galaxy II out of the youth academy of Club Atlas of the Liga MX.[2]
After three seasons with Rio Grande Valley FC, the club declined their contract option on Castellanos following their 2020 season.[3]
On February 17, 2021, Castellanos signed with MLS side Nashville SC.[4] Castellanos was loaned to USL Championship side Tampa Bay Rowdies on March 11, 2022.[5] Following the 2022 season, his contract option was declined by Nashville.[6]
On 26 January 2023, Castellanos signed for Finnish club Kuopion Palloseura (KuPS) ahead of the 2023 season with the option to extend the deal for a further year.[7]
After just three Finnish League Cup appearances for KuPS, Castellanos returned to the United States on February 17, 2023, signing with MLS side Sporting Kansas City.[8]
On November 14, 2024, his 2025 contract option was declined, ending his tenure with Sporting KC and leaving him as a free agent ahead of the 2025 season.[9]
In August 2016, Castellanos was called into a camp by the United States at the U20 level.[10]