Ono, 33, is due to arrive in Australia on Monday and could be available for Western Sydney's A-League debut at home to Central Coast Mariners on October 6.

After beginning his career with Urawa Red Diamonds in 1998, Ono's career has taken him to Eredivisie side Feyenoord, German club VfL Bochum and back to the J.League with S-Pulse, as well as a second spell at Urawa.

He was capped 58 times for Japan between 1998 and 2008, appearing at the 1998, 2002 and 2006 FIFA World Cups.

"We have been in talks with Shinji and his management for a long time now, we have gone through the process and believe he will add a large amount to our squad across all areas," Wanderers coach Tony Popovic said in a statement.

"He is an experienced player at all levels and has played on some of the biggest stages in the world, his professionalism at the top level will be good for all to see."

Executive Chairman Lyall Gorman said the signing of such a top-class player would be warmly welcomed by the Wanderers Members.

“The signing of a Shinji Ono will bring plenty of quality to our team and plenty of excitement to Parramatta Stadium,” said Gorman.

“This complements our policy of developing western Sydney products. Shinji’s class and professionalism will rub off on all the young players we have.

“The added benefit is the international profile Shinji will bring to the Wanderers and give us another way to connect with fans across western Sydney.”

Ono joins Dutchman Youssouf Hersi, German Jerome Polenz, Croatians Mateo Poljak and Dino Kresinger and Italian Iacopo La Rocca as the Wanderers' sixth overseas player going into their inaugural season in the A-League.

The club received special dispensation from Football Federation Australian to add an additional foreign player, with Ono by far the most high-profile of Western Sydney's imports.

Former Chelsea and Bayern Munich midfielder Michael Ballack had been linked with the Wanderers but a deal for the former Germany captain fell through, leaving the way clear for Ono's arrival.