Cahill: It's the end of an era
Tributes came from former team-mates, with many coming from Socceroos stars who spent time with him during his 56-cap career which lasted from 1996 until his final appearance in green and gold in June 2012 away to Oman.
There was also those who saw him first hand during his glittering European club career which included spells with Leeds United, Liverpool and Galatasaray.
Congratulations on an amazing career mate #HarryKewell Australian Legend. Love to you and the family. #EndofanEra
Tim Cahill (@Tim_Cahill) March 26, 2014
Best wishes for the future HK, congrats on a brilliant past. Great career!!
Lucas Neill (@LucasNeill) March 26, 2014
Congratulations to @HarryKewell on an amazing career. Great role model and inspired a generation of young footballers. #Legend
Tommy Oar (@TommyOar10) March 26, 2014
@HarryKewell congratulations mate! You've had a career that many dream of. Enjoy retirement & all the best in your future endeavors! #legend
Mile Sterjovski (@MSterjovski) March 26, 2014
Congrats to my "brother from another mother" @HarryKewell Great career mate & the best strike partner I have played with over the years
Michael Bridges (@MickyBridges8) March 26, 2014
@HarryKewell Congratulations on an amazing career.Happy retirement H
Didi Hamann (@DietmarHamann) March 26, 2014
Congrats on an amazing career @HarryKewell unfortunately as I found out they have to end one day ! #worldclass
fred flintoff (@flintoff11) March 26, 2014
Provided many highlights playing for the Socceroos & in the English Premier League. Congratulations to #HarryKewell on a wonderful career.
Ned Zelic (@NedZelic) March 26, 2014
Congratulations to @HarryKewell on a stellar career. A great #Socceroo & always a pleasure to work with. Best wishes H to you & your family
Frank Farina (@Frank_Farina) March 26, 2014
Speaks volumes when every kid wanted to be him. One of the best players this country ever produced. #HarryKewell
Mark Rudan (@MarkRudan) March 26, 2014
Will always remember growing up wanting to be like Harry Kewell! A true Aussie Legend! Congratulations on a stunning career @HarryKewell
Ryan McGowan (@rmcgowan89) March 26, 2014
Congrats to @HarryKewell on a great career. Legend of the game and will be missed. Wish you all the very best in the future
Dario Vidosic (@dvidosic23) March 26, 2014
Congrats to @HarryKewell. Biggest name in Australian football. Well done H...
Nathan Burns (@nathanburns10) March 26, 2014
All the Twitter love, prompted Kewell to respond after an overwhelming day for 35-year-old football legend from Smithfield in Sydneys west.
I'm overwhelmed by all you messages.. Want to thank my team mates and the coach JVS for coming to the press conference.. #Humbled
Harry Kewell (@HarryKewell) March 26, 2014