| Diyan Valkov | |
| Fullname: | Diyan Tsvetozarov Valkov |
| Birth Date: | 13 September 1993 |
| Birth Place: | Pleven, Bulgaria |
| Height: | 1.90 m[1] |
| Youthclubs1: | Spartak Pleven |
| Youthclubs2: | Litex Lovech |
| Youthclubs3: | Slavia Sofia |
| Currentclub: | Sayana Haskovo |
| Clubnumber: | 1 |
| Position: | Goalkeeper |
| Years1: | 2010–2016 |
| Clubs1: | Slavia Sofia |
| Caps1: | 0 |
| Goals1: | 0 |
| Years2: | 2012–2013 |
| Clubs2: | → Lyubimets 2007 (loan) |
| Caps2: | 21 |
| Goals2: | 0 |
| Years3: | 2015 |
| Clubs3: | → Pirin Razlog (loan) |
| Caps3: | 12 |
| Goals3: | 0 |
| Years4: | 2015–2016 |
| Clubs4: | → Vereya (loan) |
| Caps4: | 26 |
| Goals4: | 0 |
| Years5: | 2016–2018 |
| Clubs5: | Litex Lovech |
| Caps5: | 57 |
| Goals5: | 0 |
| Years6: | 2018–2019 |
| Clubs6: | CSKA 1948 |
| Caps6: | 12 |
| Goals6: | 0 |
| Years7: | 2019 |
| Clubs7: | Botev Galabovo |
| Caps7: | 11 |
| Goals7: | 0 |
| Years8: | 2020 |
| Caps8: | 4 |
| Goals8: | 0 |
| Years9: | 2020 |
| Caps9: | 5 |
| Goals9: | 0 |
| Years10: | 2020–2021 |
| Clubs10: | Levski Lom |
| Caps10: | 31 |
| Goals10: | 0 |
| Years11: | 2021–2023 |
| Caps11: | 11 |
| Goals11: | 0 |
| Years12: | 2023– |
| Caps12: | 0 |
| Goals12: | 0 |
Diyan Valkov (bg|Диян Вълков; born 13 September 1993) is a Bulgarian footballer who plays as a goalkeeper for Sayana Haskovo.
In August 2016, Valkov joined Litex.[2] He left the club in June 2018.[3]
On 28 June 2018, Valkov signed with CSKA 1948.[4]