Tamishia is of American origin, derived from Native American roots. It is a unisex name, meaning "flowing water" in Choctaw, a Muskogean language spoken by the Choctaw people. Tamishia is often associated with fluidity, adaptability, and the beauty found in nature's constant movement. The name consists of four syllables: Ta-mi-shi-a, making it melodic and distinctive when spoken aloud.
The name Tamishia first appeared in 1972 with eight births that year. It then saw a slight increase to nine births in 1974 but dipped to five births the following year. After a significant gap, there were seven births recorded for the name Tamishia in 1980. Altogether, over these years, there were twenty-nine babies named Tamishia born in total.