Mauricio joins us from Southampton where he guided them to their highest-ever Premier League finish of eighth place last season.
During his 18 months at St Mary's, Mauricio also oversaw the progress of home-grown stars such as Luke Shaw, Adam Lallana, James Ward-Prowse and Calum Chambers.
Mauricio built his coaching reputation in Spain with RCD Espanyol, winning admirers across Europe for his high pressing attacking brand of football as well as for prioritising the development of young players from the side's youth setup before his departure in November, 2012 after almost four years in charge.
Mauricio enjoyed a highly successful playing career, making his debut in 1988 with Argentinian side Newell's Old Boys at the age of 16 and winning the Argentine Primera División with them in 1991. Two spells at Espanyol followed from 1994, sandwiched between time with Paris Saint-Germain and Bordeaux. He won two Copa del Rey titles with Espanyol and also earned 20 international caps with Argentina.
Commenting on the appointment Chairman Daniel Levy said:
"In Mauricio I believe we have a Head Coach who, with his high energy, attacking football, will embrace the style of play we associate with our Club. He has a proven ability to develop each player as an individual, whilst building great team spirit and a winning mentality.
"We have a talented squad that Mauricio is excited to be coaching next season."
Speaking on his appointment, Mauricio Pochettino said:
"This is a Club with tremendous history and prestige and I am honoured to have been given this opportunity to be its Head Coach.
"There is an abundance of top-class talent at the Club and I am looking forward to starting work with the squad.
"Tottenham Hotspur has a huge following across the world and I have great admiration for the passion the fans show for this team. We are determined to give the supporters the kind of attacking football and success that we are all looking to achieve."
Mauricio is joined by Jesús Pérez (Assistant Head Coach), Miguel D'Agostino (First Team Coach) and Toni Jiménez (Goalkeeper Coach) with whom he previously worked at both Southampton and Espanyol.