|Full name||Ģirts Karlsons|
|Date of birth||7 June 1981|
|Place of birth||Liepāja, Latvian SSR, Soviet Union
(now Republic of Latvia)
|Height||1.91 m (6 ft 3 in)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 8 August 2014 (UTC).
† Appearances (Goals).
As a youth player Karlsons played for his local club FK Liepājas Metalurgs, being taken to the first team in 1998, at the age of 17. He spent the next six seasons with the club, becoming the second top scorer of the Latvian Higher League in 2003 with 26 goals, completing two hat-tricks during the season. All in all he played 96 matches for his local club, scoring 40 goals. After these bright appearances he had impressed clubs abroad, and in January 2004 Karlsons went on a month-long trial with the Russian Premier League club Shinnik Yaroslavl. Afterwards he signed a three-year contract with them. However, his spell there wasn't as successful as expected and was very short. After just one season, during which he played only 8 league matches without scoring goals, Karlsons returned to the Latvian Higher League, signing with the newly promoted, ambitious club Venta Kuldiga in 2005. However, the club struggled financially and after just five matches had to let some of their players go, including Karlsons, who returned to his hometown club, Liepājas Metalurgs later that year. He spent the next three seasons there, once again showing great performance. He scored a hat-trick in the 2005 season, and he also scored in the Latvian Cup final on 25 September 2005, which Metalurgs lost 2–1 to Venta Kuldīga. Another hat-trick came in the 2006 season, which Karlsons finished as the second top scorer with 14 goals under his belt. In the Latvian Cup he scored a hat-trick in the 6–1 semi-final victory over Dižvanagi Rēzekne and then scored in the final, which the club won 2–1 over Skonto Riga. In December 2006 Karlsons was named the runner-up of the Latvian Player of the Year Award by the Latvian Football Federation behind the winner Aleksandrs Koļinko, who that time was the first-choice keeper for Rubin Kazan in the Russian Premier League. His contract with Metalurgs expired in July 2007 and it was not renewed. Player was then linked with the English Championship club Bristol City, before going on trial with Southampton. In January 2008 he had a two day trial with Wolverhampton Wanderers. Karlsons then had trials in the Netherlands with Zwolle and De Graafschap,  and on 8 February 2008 he signed for De Graafschap, which that time competed in the Dutch Eredivisie. Karlsons returned to Liepājas Metalurgs in the middle of 2008, because of limited game time. After some impressive matches there he attracted interest from several European clubs, but finally settled down in Azerbaijan, signing a contract with Inter Baku in the summer of 2009. The next season he became the champion of Azerbaijan. He scored 8 goals in 19 matches for Inter in his first season there, but the next two weren't that successful anymore and in July 2012 he was released. In August 2012 Karlsons once again returned to Liepājas Metalurgs. The 2012 season saw Karlsons scoring 9 goals in 19 league matches. Even though Metalurgs expressed their interest to keep him at the club, Karlsons chose to continue his career abroad, joining the Indonesian Premier League club Pro Duta in March 2013. On 14 April 2013 he scored his first two goals in a 3-0 league victory over Bontang. Throughout the season Karlsons scored 15 league goals for the club, completing two hat-tricks. He left Pro Duta at the end of his contract in November 2013. In February 2014 Karlsons went on trial with the Belarusian Premier League club Neman Grodno alongside his international fellow Igors Tarasovs and signed a contract with the club on 26 February 2014. He scored his first Belarusian Premier League goal in a 3-2 victory over Dnepr Mogilev on 19 April 2014. Karlsons left Neman on 9 June 2014 due to family reasons and returned to Latvia. On 3 July 2014 Karlsons signed a contract with the Latvian Higher League title holders FK Ventspils. He helped the club retain the title for the second year in a row.
Karlsons played for the Latvia-U21. Karlsons made his first appearance for Latvia national team on 20 December 2003 as a second-half substitute against Kuwait in Cyprus, which Latvia lost 2–0. On 28 December 2005 he scored in Latvia's 2–1 win over Oman national football team to reach the final of the King's Cup in Thailand. Latvia won the cup, beating Korea DPR 2–1 in the final on 30 December with Karlsons again scoring. Currently Karlsons has 49 international caps under his belt, having scored 9 goals. He played his last international game on 9 February 2011, a 2-1 victory in a friendly match against Bolivia, coming on as a late substitute. Since then Karlsons hasn't been called up to the national team anymore.
- FK Liepājas Metalurgs
- FK Ventspils
- Virslīga champion (1): 2014
- "Latvia 2003". Rec.Sport.Soccer Statistics Foundation. 2004-10-01. Retrieved 2008-02-09.
- "Shinnik challenge for Latvian striker". UEFA. 2004-04-02. Retrieved 2008-02-09.
- "Karlsons quits Russia for Venta". UEFA. 2005-02-10. Retrieved 2008-02-09.
- "Venta enter the twilight zone". UEFA. 2005-05-13. Retrieved 2008-02-09.
- "Latvia 2005". Rec.Sport.Soccer Statistics Foundation. 2006-03-04. Retrieved 2008-02-09.
- "Latvia 2006". Rec.Sport.Soccer Statistics Foundation. 2007-03-21. Retrieved 2008-02-09.
- "Kolinko given Latvian honour". UEFA. 2006-12-04. Retrieved 2008-02-09.
- "Wolves take Latvian on trial". Express & Star. 2008-01-08. Retrieved 2008-02-09.
- "Wolves trial Latvian striker: McCarthy takes a closer look at Karlsons". Sky Sports. 2008-01-08. Retrieved 2008-02-09.
- "FC Zwolle test opnieuw aanvaller uit Letland" (in Dutch). FC Zwolle. 2008-02-09. Retrieved 2008-02-09.[dead link]
- "Spits Karlsons naar De Graafschap" (in Dutch). Sp!ts. 2008-02-08. Retrieved 2008-02-09.[dead link]
- "Karlsons spēlēs Baku "Inter" - liepajniekiem.lv". 3 August 2009.
- "Čekulajevs karjeru turpinās Taizemē, Karlsons - Indonēzijā". Sportacentrs.com.
- "Indonesia - Pro Duta FC - Results - Futbol24".
- "Latvia - G. Karlsons - Profile with news, career statistics and history - Soccerway".
- "Karlsons paliks "Neman" komandā - liepajniekiem.lv". 26 February 2014.
- "Maksimenko vārti Skotijas Premjerlīgā, mūsējie sit golus arī Polijā un Baltkrievijā". Sportacentrs.com.
- "Karlsons pametis Grodņas "Neman"". Sportacentrs.com.
- ""Ventspils" pastiprina sastāvu ar Karlsonu". Sportacentrs.com.
- "FK "Ventspils" priekšlaicīgi kļūst par seškārtējiem Latvijas čempioniem". Latvijas Futbola federācija.
- "Late strike saves Sweden". UEFA. 2003-10-10. Retrieved 2008-02-09.[dead link]
- "Last-gasp Latvia earn final date". UEFA. 2005-12-28. Retrieved 2008-02-09.
- "Latvia claim royal reward". UEFA. 2005-12-30. Retrieved 2008-02-09.
- "Latvijas futbola federācija".
- "Latvijas futbola federācija".
- Girts Karlsons career statistics at Soccerbase
- Ģirts Karlsons profile at the Latvian Football Federation website (Latvian)
- Ģirts Karlsons at National-Football-Teams.com
- Profile at Soccerway