Yoon Hwan Choi was born in Seoul, Korea, on May 18, 1957. He married Bon Kyung Koo in September 1982. They are the parents of three children.
He received a bachelor’s degree in business information management from Brigham Young University–Hawaii in 1988. In 1989, he received a master’s degree in business information systems and education from Utah State University.
Since joining the Church in 1973, Elder Choi has served in a number of Church callings, including full-time missionary in the Busan Korea and Seoul Korea missions, counselor in a bishopric, bishop, high councilor, stake mission president, counselor in a mission presidency, counselor in a stake presidency, stake president, and Area Seventy.
At the time of his call, he had been serving as a member of the Eighth Quorum of the Seventy in the Asia North Area. From 2009 to 2011 he served as a member of the Asia North Area Presidency. From 2011 to 2013 he served as an Assistant Executive Director in the Temple Department and a member of the Boundary and Leadership Change Committee. He served as president of the Washington Seattle Mission (2013–2015) and President of the Asia North Area. He currently serves as Second Counselor in the Philippines Area.
He has been an instructor at Brigham Young University–Hawaii and Utah State University; manager of sales, administration, marketing, and customer support at Data General Korea; director of CDC and MBS Venture Capital Company; and the regional manager for temporal affairs for the Church in Korea.