Leisha is of Hebrew origin and means "God is my oath". It is a gender-neutral name, though historically it has been more commonly used for females. The name Leisha gained popularity in the United States during the late 20th century, peaking in the 1980s and 1990s. Notable individuals with this name include American actress Leisha Hailey and Canadian singer-songwriter Leslie Feist, often referred to by her stage name 'Feist'. In literature, Leisha Camden is a prominent character in the science fiction novel "Beggars in Spain" by Nancy Kress.
The name Leisha peaked in popularity between 1957 and 1964 with over a hundred births each year, reaching its zenith in 1960 with 142 births. However, it declined significantly thereafter, dropping to just five births in 1999, and has remained relatively rare since then, although there was a brief spike in recent years with 31 births recorded in 2023. Overall, there were a total of 2058 births named Leisha from 1956 to 2023.