The Portuguese is back in the Premier League following his sacking by Manchester United in December 2018 as he replaces Mauricio Pochettino.
The announcement comes less than a day after Mauricio Pochettino was sacked by the club following a poor start to the 2019-20 season.
Spurs currently sit in 14th place in the Premier League table having collected just three wins from their first 12 league games, while they also suffered a 7-2 thrashing at the hands of Bayern Munich in the Champions League.
Mourinho has been out of management since December 2018 when he was dismissed by Manchester United and the three-time Premier League winner has expressed his excitement as he is chosen to take over the Spurs job.
The 56 year old is no stranger to London having spent over five years at Stamford Bridge in charge of Chelsea where he won the domestic title three times across two separate stints.
And Tottenham chairman Daniel Levy has stressed that Mourinho’s strong track record of silverware made him the ideal choice to replace Pochettino, who had been at the helm since 2014.