A solid and dependable defender, he brought resilience and tactical awareness to the Bulgarian backline throughout the 1990s, including their great 1994 World Cup adventure. Career record: 53 caps and 5 goals for Bulgaria; club career at FC Etar 1924 Veliko Tarnovo, F.C. Etar, Aberdeen.
| 1983–1991 | FC Etar 1924 Veliko Tarnovo |
| 1984–1991 | F.C. Etar |
| 1991–1993 | Deportivo de A Coruña |
| 1993–1994 | CP Mérida |
| 1993–1994 | Mérida UD |
| 1994–1994 | PFC CSKA Sofia |
| 1995–1996 | Anorthosis Famagusta |
| 1995–1995 | F.C. Etar |
| 1995–1995 | FC Etar 1924 Veliko Tarnovo |
| 1996–2000 | Aberdeen |
| 2000–2000 | Airdrieonians |
| 2001–2001 | Raith Rovers |
| Bulgaria | 53 caps, 5 goals |
Bulgaria legends whose careers overlapped Kiriakov's
One rank above: Petar Hubchev at #31.
One rank below: Zlatko Yankov at #33.
Bulgaria's editorial top five: Hristo Stoichkov · Dimitar Berbatov · Georgi Asparuhov · Hristo Bonev · Krasimir Balakov.