The popular Australian has taken English football by storm since taking charge in the summer and saw his side go unbeaten in their first 10 games.
Spurs’ progress was slightly halted by a chaotic 4-1 defeat to Chelsea on Monday after they were reduced to nine men, but it has still been a fine start to the campaign.
Last month, Postecoglou oversaw three victories – against Luton Town, Fulham and Crystal Palace – to ensure he has now won the gong three months in a row after his triumphs in August and September.
They had won eight and drawn two of their 10 top flight games by the end of October.
Spurs had seen double success along with the Player of the Month award, after James Maddison and Son Heung-Min had picked up the accolades for August and September respectively.
However, on this occasion Mohamed Salah was chosen for the fifth time in his career after five goals in three top flight fixtures across October for Liverpool.
Postecoglou joins an exclusive club with only three other managers to have won three or more monthly awards on the trot, with Pep Guardiola – who is the only boss to win four in a row – Antonio Conte and Jurgen Klopp having all achieved the same feat.
The 1-0 victory at Luton last month came after Yves Bissouma was sent off in the first half for Spurs, while Tottenham then swept aside Fulham with ease in a 2-0 victory.
Meanwhile, the 2-1 victory at Crystal Palace came following a hard-fought game when Spurs found a way to win despite a below-par display.
They are back in action on Saturday lunchtime when they travel to Wolves, although Postecoglou is set to be without several key players through injury and suspension.
This includes Micky van de Ven, James Maddison, Destiny Udogie and Cristian Romero, with the quartet having been crucial to Spurs’ fine start to the campaign.
Ange Postecoglou has made history after winning the Barclays Premier League Manager of the Month award for the third time in a row, with Tottenham Hotspur’s head coach adding the October prize to those he received for August and September.
Postecoglou becomes the first boss ever to win the first three Manager of the Month awards available to him, and the first to claim the first three awards from the start of any PremierOFFICIAL: Salah wins EPL POTM award for October League season.
Only three other managers have won the award for three consecutive months, with the Australian joining Antonio Conte, Pep Guardiola and Jurgen Klopp in an elite club.
Postecoglou now has the chance to match Guardiola’s record run of four successive awards, which the Manchester City manager accomplished in 2017/18.
Spurs finished October at the top of the Premier League table, and were the only team to win all of their October matches thanks to away wins over Luton Town and Crystal Palace, and a 2-0 home victory against Fulham.
Postecoglou topped a poll of a four-man shortlist, after votes from fans were combined with those of a panel of experts.