|Full name||Aleksandar Aleksandrov Tsvetkov|
|Date of birth||31 August 1990|
|Place of birth||Pleven, Bulgaria|
|Height||1.81 m (5 ft 11¼ in)|
|Playing position||Central midfielder|
|Beroe Stara Zagora|
|2018–||Beroe Stara Zagora||41||(0)|
* Senior club appearances and goals counted for the domestic league only and correct as of 18 August 2019|
‡ National team caps and goals correct as of 3 September 2017
Tsvetkov made his first team debut in a 5–1 Bulgarian Cup win over Maritsa Plovdiv on 7 December 2008, coming on as a substitute for Sandrinho. He made his league debut on 31 May 2009, again as a substitute replacing Wilfried Niflore, as Litex beat CSKA Sofia 1–0.
On 9 June 2016 after 10 years in Litex, he left the club and joined Cherno More. He quickly established himself as a regular starter, so it came as a surprise when his contract was terminated by mutual consent in May 2018, several weeks before the end of the season.
On 7 October 2011, Tsvetkov earned his first cap for Bulgaria in the 0–3 away loss against Ukraine in an exhibition match. He had to wait nearly 6 years to feature for the national team again; on 3 September 2017, Tsvetkov was in the line-up for a 2018 FIFA World Cup qualifier, a 1–3 away defeat by the Netherlands.
- As of 21 February 2019
|Litex Lovech II||2015–16||22||1||0||0||0||0||22||1|
- "Състав на "Черно море" за сезон 2016/2017" (in Bulgarian). Cherno More official website. Archived from the original on 2017-04-22. Retrieved 27 April 2017.
- "Черно море се подсили с национален състезател" (in Bulgarian). PFC Cherno More. 9 June 2016.
- "Александър Цветков разтрогна с Черно море" (in Bulgarian). chernomorepfc.bg. 8 May 2018.
- "Берое привлече Александър Цветков" (in Bulgarian). beroe.bg. 23 June 2018.
- "2018 FIFA World Cup Russia - Matches - Netherlands-Bulgaria - FIFA.com". fifa.com. 3 September 2017.