Sonja Lyubomirsky (Russian: Соня Любомирская, born December 14, 1966)[1] is a Russian-born American professor in the Department of Psychology at the University of California, Riverside[2] and author of The How of Happiness: A Scientific Approach to Getting the Life You Want.

[4] Lyubomirsky has received a John Templeton Foundation grant, a Science of Generosity grant, a Templeton Positive Psychology Prize, and a million-dollar grant (with Ken Sheldon) from the National Institute of Mental Health.

[4] In 2021, she received an honorary doctorate from the University of Basel.

[4] The premise of The How of Happiness is that 50 percent of a given human's long-term happiness level is genetically determined,[7] 10 percent is affected by life circumstances and situation, and a remaining 40 percent of happiness is subject to self control.

Lyubomirsky is on the company's scientific advisory board.