Suzuki, 45, made the announcement after playing for the Mariners in the second game of their Major League Baseball opening series in Japan against the Oakland Athletics.
His final at bat could hardly have been more typical: a ground ball out that he very nearly legged into an infield single with a full-bore sprint to first. The Mariners won 5-4 after three extra innings.
Tokyo 2020
Tokyo 2020 - United States vs Dominican Republic - Baseball - Olympic Highlights
04/08/2021 AT 07:15
Those two games this year mark his 28th season as a top tier professional baseball player in the United States and Japan.
"I have achieved so many of my dreams in baseball, both in my career in Japan and, since 2001, in Major League Baseball," he said. "I am honoured to end my big league career where it started, with Seattle, and think it is fitting that my last games as a professional were played in my home country of Japan"
Suzuki, who started in right field in both games for the Mariners this week, has 3,089 hits in the U.S. major leagues and 1,278 in Nippon Professional Baseball. Those 4,367 hits are the most ever at the top professional level.
The 10-times All Star also set MLB's record for hits in a single season with 262 in 2004.
He took Japan by storm early in his career, winning seven consecutive batting titles during his time with the Orix BlueWave before moving to the United States in 2001.
Ichiro hit the ground running immediately in the MLB, winning the American League MVP in his first year. At a time of suspiciously beefy sluggers, he was their opposite - wiry, skinny and perpetually in motion, always seeming to be two steps towards first base at the moment the ball left his bat.
He played the majority of career for the Seattle Mariners, and also had late-career stints with the New York Yankees and Miami Marlins.
Tokyo 2020
Tokyo 2020 - Dominican Republic vs Israel - Baseball / Softball - Olympic Highlights
03/08/2021 AT 13:25
Tokyo 2020
Tokyo 2020 - Republic of Korea vs Israel - Baseball / Softball - Olympic Highlights
02/08/2021 AT 07:29