Floyd Mori was born in Murray, Utah. His parents were immigrants from Japan. He grew up on a farm and graduated from Jordan High School in Sandy, Utah. After graduation, he served for six months on active duty at Fort Ord, California, with the United States Army Reserves and later was honorably discharged.
 
Mori entered college at the University of Southern California (USC). He served a two-year mission to Hawaii for the Church of Jesus Christ of Latter-day Saints. He then attended Brigham Young University (BYU) from which he received a Bachelors degree in Economics and Asian Studies. He received a Masters degree from BYU in Economics and Political Science. He taught Economics at Chabot College in Hayward, California, for ten years. He was on the Faculty Senate, taught religious education classes, was advisor to student clubs, and was a member of several professional organizations.
 
He was elected to the City Council of Pleasanton, California, in 1972 and served as Mayor of Pleasanton. He was elected to the California State Assembly where he served for six years. He was later Director of the Office of International Trade for California. He has been an International Business Consultant for over thirty years and has owned a golf business.
 
Mori was a National President on the Board of the Japanese American Citizens League (JACL). He served as National Executive Director/CEO of the JACL in Washington, D.C. and later was the President/CEO of the Asian Pacific American Institute for Congressional Studies (APAICS). He is now retired and lives in Utah.
 
He has served on many boards and has received various awards. He has spoken to many groups and has published several books, including The Japanese American Story as Told Through a Collection of Speeches and Articles.