"I think there's no other place that I'd rather play my first Olympics of course", Naomi told NHK World-Japan in an interview on October 10.
Under Japanese law, persons with dual citizenship are required to choose only one country to be a citizen of by their 22nd birthday.
Osaka now holds dual nationality from Japan and the United States.
Osaka, who has a Eastern mother and a Haitian father, suggested NHK she has performed an administrative step to bag Eastern citizenship sooner than her birthday next week.
Osaka added she desires to objective for the gold though she can be nervous as expectations will likely be excessive.
"It's definitely going to be very special", Osaka said.
Osaka now lives and trains in the United States. "I think that will be one of the most memorable things that ever happens to me".More news: "Jesus Shoe": $3,000 Sneakers Filled With Holy Water Sell Out In Minutes
More news: Rebekah Vardy threatens Coleen Rooney: 'I'll see you in court'
More news: Ukraine to investigate potential 2016 USA election interference
Osaka won the China Open Sunday and is now ranked No. 3 in the world, playing for Japan both in the Fed Cup and on the WTA Tour.
Osaka, who resides in the United States, defeated world No.1 Ash Barty in the final of the China Open in Beijing last Sunday.
In July, in an interview with the International Tennis Federation, she said: "Winning gold in Tokyo is something that I have dreamed about".
Osaka made her claim to fame in the US Open final past year when she beat Serena Williams, causing a major upset as she won the Grand Slam title.
"Everyone who competes at the Olympics wants to be an Olympic champion, so that would be my aim".