In his first spell as coach of the Belgium national football team he led it to the 1998 FIFA World Cup finals after a two-legged win against the Republic of Ireland in the qualifying play-off. He was sacked from his role as federal coach after a disappointing third place in the World Cup group stage failed to qualify Belgium for the second round after drawing with Netherlands, Mexico and South Korea.
After making a brief pass as coach of KSC Lokern and Roda JC, he was announced as coach of Algeria at the end of 2002, which he qualified for the 2004 African Cup of Nations in Tunisia, but reached an agreement with the Federation to rescind the contract for family reasons.
Back to Belgium and a short experience in the Persian Gulf
After his African stage, he returned to the Royal Excelsior Mouscron, then he signed for KAA Gent for three years and again he would take the bench of KSC Lokeren. In 2009, it was announced that he will the new coach of Al-Hilal FC but he was sacked after three months after being defeated against Al-Shabab 3–0 so he coached KV Kortrijk again for one season.
Second spell at Belgium
On 11 May 2010 Leekens signed a contract until 2012 to take over the Belgium national team for the second time. As a consequence he had to resign from his coaching role at K.V. Kortrijk. On 12 April 2011 it was announced that Leekens's contract had been extended to 2014 after some promising results in the Euro 2012 qualifying campaign. On 13 May 2012 it was announced that Leekens will coach Club Brugge for a second time, but he was fired a few months later after a series of successive defeats.
Tunisia
On 27 March 2014 he signed a 2-year contract with the Tunisian Football Federation to coach the Carthage Eagles. For his first tournament with Tunisia, Georges Leekens managed to take the team to the quarterfinals, his team being eliminated 1-2 by Equatorial Guinea, the host country of the 2015 Africa Cup of Nations. On 27 June 2015 the Tunisian federation announces having terminated its contract amicably.
In October 2017 it was announced, that Leekens will coach the Hungarian National Team. Due to three losses and one draw in four matches, he was fired in June 2018.
Experience in African and Asian clubs
He was appointed by Tunisian club Étoile du Sahel as coach on 10 October 2018 after failing in the 2018 CAF Champions League to be his first experience with African clubs after a long period in European clubs and a short experience in Asian clubs with Al Hilal. He managed to qualify the team to the quarter-finals of the Arab Championship with African champions Wydad Casablanca before leaving on 26 November for unconvincing results in the Tunisian League. After less than two months in January 2019, Leekens contracted with Tractor of Iran, but his coaching period did not last long, as the contract was rescinded in May 2019. In May 2020, nearly a year after his last coaching experience, Leekens announced his retirement, to devote himself to his own affairs, he said.
Managerial statistics
Managerial record
Honours
As Player
;Club Brugge
Belgian League: 1973, 1976, 1977, 1978, 1980
Belgian Cup: 1977
Belgian Super Cup: 1980
UEFA Champions League: 1978
As Manager
;Club Brugge
Belgian League: 1990
Belgian Cup: 1991
Belgian Super Cup: 1990, 1991
;Cercle Brugge
Belgian Cup: 1985
;Belgium
Kirin Cup: 1999
Personal life
Georges Leekens is the cousin of Louis Leekens, who was Belgian National Champion of gymnastics in 1966 and is currently leading the top sports school for gymnastics in Genk.