|Russia||Hosts||2 December 2010||11th||2014||2||Fourth place (1966)|
|Brazil||Conmebol Round Robin winners||28 March 2017||21st||2014||21||Winners (1958, 1962, 1970, 1994, 2002)|
|Iran||AFC Third Round Group A winners||12 June 2017||5th||2014||2||Group stage (1978, 1998, 2006, 2014)|
|Japan||AFC Third Round Group B winners||31 August 2017||6th||2014||6||Round of 16 (2002, 2010)|
|Mexico||CONCACAF Fifth Round winners||1 September 2017||16th||2014||7||Quarter-finals (1970, 1986)|
|Belgium||UEFA Group H winners||3 September 2017||13th||2014||2||Fourth place (1986)|
|South Korea||AFC Third Round Group A runners-up||5 September 2017||10th||2014||9||Fourth place (2002)|
|Saudi Arabia||AFC Third Round Group B runners-up||5 September 2017||5th||2006||1||Round of 16 (1994)|
|Germany||UEFA Group C winners||5 October 2017||19th||2014||17||Winners (1954, 1974, 1990, 2014)|
|England||UEFA Group F winners||5 October 2017||15th||2014||6||Winners (1966)|
|Spain||UEFA Group G winners||6 October 2017||15th||2014||11||Winners (2010)|
|Nigeria||CAF Third Round Group B winners||7 October 2017||6th||2014||3||Round of 16 (1994, 1998, 2014)|
|Costa Rica||CONCACAF Fifth Round runners-up||7 October 2017||5th||2014||2||Quarter-finals (2014)|
|Poland||UEFA Group E winners||8 October 2017||8th||2006||1||Third place (1974, 1982)|
|Egypt||CAF Third Round Group E winners||8 October 2017||3rd||1990||1||First round (1934), Group stage (1990)|
|Iceland||UEFA Group I winners||9 October 2017||1st||–||1||–|
|Serbia||UEFA Group D winners||9 October 2017||12th||2010||1||Fourth place (1930, 1962)|
|Portugal||UEFA Group B winners||10 October 2017||7th||2014||5||Third place (1966)|
|France||UEFA Group A winners||10 October 2017||15th||2014||6||Winners (1998)|
|Uruguay||CONMEBOL Round Robin runners-up||10 October 2017||13th||2014||3||Winners (1930, 1950)|
|Argentina||CONMEBOL Round Robin third-place||10 October 2017||17th||2014||12||Winners (1978, 1986)|
|Colombia||CONMEBOL Round Robin fourth-place||10 October 2017||6th||2014||2||Quarter-finals (2014)|
|Panama||CONCACAF Fifth Round third-place||10 October 2017||1st||–||1||–|
|Senegal||CAF Third Round Group D winners||10 November 2017||2nd||2002||1||Quarter-finals (2002)|
|Morocco||CAF Third Round Group C winners||11 November 2017||5th||1998||1||Round of 16 (1986)|
|Tunisia||CAF Third Round Group A winners||11 November 2017||5th||2006||1||Group stage (1978, 1998, 2002, 2006)|
|Switzerland||UEFA Second Round winners||12 November 2017||11th||2014||4||Quarter-finals (1934, 1938, 1954)|
|Croatia||UEFA Second Round winners||12 November 2017||5th||2014||2||Third place (1998)|
|Sweden||UEFA Second Round winners||13 November 2017||12th||2006||1||Runners-up (1958)|
|Denmark||UEFA Second Round winners||14 November 2017||5th||2010||1||Quarter-finals (1998)|
|Australia||CONCACAF v AFC play-off winners||15 November 2017||5th||2014||4||Round of 16 (2006)|
|Peru||OFC v CONMEBOL play-off winners||15 November 2017||5th||1982||1||Quarter-finals (1970), Second round (1978)|
This is the 4th appearance of Russia at the FIFA World Cup; however, FIFA considers Russia as the successor team of the Soviet Union who themselves qualified on 7 occasions.
Russia’s best result is group stage in since 1994, 2002 and 2014; however, FIFA considers Russia as the successor team of the Soviet Union who achieved this result.
Germany between 1951 and 1990 is often referred to as “West Germany“, as a separate East German state and team existed then.
No official third-place match took place in since1930 and no official third place was awarded at the time; both United States and Yugoslavia lost in the semi-finals. However, FIFA lists the teams as third and fourth respectively using the overall records of the teams in the tournament.
In 1978, the second round was another group stage which involved 8 teams qualified from the first round.