Xu Yuan Zhen (born 25 April 1985) is a Singaporean former sailor, who specialized in the two-person dinghy (470) class.

[1] A member of the Singapore Sailing Federation, Xu trained for the Games under head coach Craig Ferris.

At the 2006 Asian Games in Doha, Qatar, Xu and Terence Koh won the silver medal in the men's 470.

[2] Xu competed for the Singaporean sailing squad, as a skipper in the men's 470 class, at the 2008 Summer Olympics in Beijing.

[3] He and Koh topped the selection criteria in a three-way battle with two other teams comprising Roy Tay and Chung Peiming, and Teo Wee Chin and Benjamin Tan, based on their cumulative scores attained at three international regattas stipulated by the Singapore Sailing Federation.