Star jockey Craig Williams is heading back abroad for another stint in Japan.

Williams will chase Group One success at Randwick on the final day of Sydney's autumn carnival on Saturday before leaving for Japan on Monday to ride for two months.

It will be the jockey's fourth stint in Japan and he will again link with prominent owner Katsumi Yoshida.

"It's a great opportunity to ride for Katsumi Yoshida again," Williams told Racing Victoria.

"They've got the Japan Derby and the Oaks coming up and while they haven't confirmed my rides yet, (Yoshida's) Northern Farm have got numerous horses going that way."

Williams will first be out to end the Sydney carnival on a high note with seven rides at Randwick including Aliyana Tilde in the Sydney Cup, Rain Affair in the All Aged Stakes and Havana in the Champagne Stakes.