Demidov playing for Rosenborg in 2010
|Full name||Vadim Sergeievich Demidov|
|Date of birth||10 October 1986|
|Place of birth||Riga, Soviet Union|
|Height||1.85 m (6 ft 1 in)|
|Playing position||Centre back|
|2006||→ Manglerud Star (loan)||30||(2)|
|2013||→ Celta Vigo (loan)||12||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 12 June 2018
‡ National team caps and goals correct as of 20:31, 13 November 2012 (UTC)
Demidov was born in Riga, Latvian Soviet Socialist Republic, Soviet Union, and is of Russian ethnicity. His father is handball player Sergei Demidov, who played internationally for the Soviet Union and later became a coach in Norway; the family moved to Sandefjord in 1989.
As a youngster, Demidov played both football and handball for Runar and was a big talent in both sports. When he was 15 his father told him that he had to choose between the two sports, and Demidov decided to quit handball; in an interview with FHM in 2011, he claimed that he could have been one of the top three handballers in the world if he had continued playing handball, but that he didn't want to walk in his father's footsteps.
Demidov turned professional in 2004 when he joined Sandefjord Fotball, and made his debut for the club in the First Division when he came on as a substitute for Magne Sturød after 87 minutes in the opening match of the 2004 season against Hødd. Demidov was then injured for a year and after spending the second half of the 2005 campaign on loan at 2. Divisjon side Fram Larvik, he returned to Sandefjord who had won promotion to the Tippeligaen, with the team subsequently telling the player that the best thing for him would be to join another club.
Demidov spent the 2006 season on loan with Manglerud Star when the club was relegated from the First Division. Ahead of the 2006 season, he lacked motivation to continue with football, but later stated that the year with Manglerud Star was the turning point in his career.
Demidov joined Hønefoss for the 2007 campaign, despite being wanted by top flight's Strømsgodset. He played regularly for the club in the First Division before moving to Rosenborg ahead of the 2008 season. In Trondheim he became first-choice centre-back from the beginning playing alongside Kris Stadsgaard, and was a part of the team that lost only one of 60 matches en route to winning two straight league championships, in 2009 and 2010. Demidov played a total of 79 league-matches, scoring four goals during his three seasons with the club.
In July 2010, as his contract was approaching its end, Demidov signed a three-year deal with Spanish club Real Sociedad, effective as of January of the following year. He made his La Liga debut on 29 January 2011, replacing French Antoine Griezmann in the last minutes of a 2–0 home win against UD Almería. All his other 12 appearances in the season were starts, as the Basque team narrowly avoided relegation.
Demidov joined Eintracht Frankfurt in July 2012, signing a three-year contract. He made his first appearance in the 0–2 loss against Borussia Mönchengladbach on 7 October 2012. He played a total of five matches in the Bundesliga before he returned to Spain and joined Celta Vigo in January 2013, on loan until the end of 2012–13 season. He appeared in his first match on 12 January, playing the full 90 minutes in a 0–1 defeat at RCD Espanyol. After Paco Herrera was replaced by Abel Resino as manager of Celta, Demidov did not play much and stated in June 2013 that he did not want to continue his career in Celta even though the club had an option to buy. On 3 July, his contract with Eintracht Frankfurt which still ran until June 2015 was dissolved by mutual consent.
On January 10, 2017, Demidov officially signed with Minnesota United FC in MLS. On February 28, head coach Adrian Heath named Demidov captain for Minnesota United's first MLS season. After one season with the club, Minnesota bought out Demidov's contract on February 28, 2018. The Loons conceded 16 goals in the 3 games in which he played.  He signed with Stabæk ahead of their 2018 season.
Demidov made his debut for Norway on 28 May 2008, replacing Jan Gunnar Solli after 76 minutes in a friendly match with Uruguay. In October the Russian Football Union checked the possibilities for the player to appear for Russia, the country of his parents; when Norway manager Egil Olsen chose Morten Fevang ahead of him for the 2010 FIFA World Cup qualifying matches against Montenegro and Netherlands in June 2009, however, he admitted that he would consider playing for Russia if he didn't get more chances for Norway.
Demidov played his second international in a friendly against Slovakia on 3 March 2010, and featured heavily in the country's UEFA Euro 2012 qualifying campaign, in an eventual third-place finish in Group H.
- As of 12 June 2018
|2010–11||Real Sociedad||La Liga||13||0||0||0||-||13||0|
|2012–13||Celta de Vigo||La Liga||12||0||0||0||-||12||0|
|2013–14||Anzhi Makhachkala||Russian Premier League||0||0||1||0||1||0||2||0|
|2017||Minnesota United||Major League Soccer||3||0||0||0||-||3||0|
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- Christiansen, Anders K. (26 August 2011). "Demidov: – Kunne blitt en av verdens beste i håndball" [Demidov: – I could have been one of the best handballers in the world] (in Norwegian). Verdens Gang. Retrieved 9 October 2012.
- "Sandefjord – Hødd". altomfotball.no (in Norwegian). TV 2. Retrieved 9 October 2012.
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- "Real Sociedad 2–0 Almeria". ESPN Soccernet. 29 January 2011. Retrieved 30 October 2011.
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- Busk, Martin (25 June 2013). "- Uaktuelt å bli i Celta Vigo" (in Norwegian). Nettavisen. Retrieved 25 June 2013.
- "Vadim Demidov, international defensive reinforcement for RC Celta". Celta de Vigo. 2 January 2013. Retrieved 29 June 2013.
- "Garcia chips in with goal". ESPN FC. 12 January 2013. Retrieved 14 January 2013.
- "Vadim Demidov leaves Bundesliga's Eintracht Frankfurt by mutual consent". Sky Sports. 3 July 2013. Retrieved 10 July 2013.
- Вадим Демидов и Абдул Разак — в "Анжи" (in Russian). Anzhi Makhachkala. 2 September 2013. Retrieved 3 October 2013.
- "Demidov er Brann-klar" (in Norwegian). ba.no. Retrieved 4 August 2014.
- "MNUFC Signs Vadim Demidov". Minnesota United FC. Retrieved 10 January 2017.
- "United defender Vadim Demidov can, and will, 'call it like it is' four different ways". Pioneer Press. 1 March 2017. Retrieved 10 April 2017.
- Haraldsen, Stian (28 May 2008). "Tale, ikke tale om" (in Norwegian). Dagbladet. Retrieved 8 February 2012.
- Haugli, Kurt (14 October 2008). "Russerne vil ha Demidov" [Russians want Demidov] (in Norwegian). Aftenposten. Retrieved 8 February 2012.
- Sivertsen, Øyvind (12 June 2009). "Jeg er russisk" (in Norwegian). Adresseavisen. Retrieved 8 February 2012.
- Haugli, Kurt (27 May 2010). "Vadim Demidov vil så gjerne vise seg frem" (in Norwegian). Aftenposten. Retrieved 8 February 2012.
- "Vukicevic: – Ønsker en verdig avslutning på karrieren" (in Norwegian). vg.no. 10 May 2015. Retrieved 13 July 2016.
- "Vadim Demidov". Norsk & Internasjonal Fotballstatistikk (in Norwegian). Bergensavisen.
- Berre, Tor (19 October 2006). "Mestvinnende spillere" (in Norwegian). Norwegian Broadcasting Corporation. Retrieved 27 July 2012.