Diminutive of Tamara, from Hebrew 'tamar' meaning 'date palm tree'.
Tammy began life as a diminutive, a pet form applied most commonly to Tamara — the Hebrew name meaning 'date palm,' borne by two significant women in the Hebrew Bible: the daughter-in-law of Judah and the daughter of King David — and less frequently to Thomasina, the feminine form of Thomas. As a standalone given name, Tammy surged into fashion in the late 1950s, propelled almost entirely by a single cultural moment: the 1957 film *Tammy and the Bachelor* starring Debbie Reynolds, and its Academy Award-nominated theme song, 'Tammy,' which spent five weeks at number one on the Billboard charts. The song's dreamy innocence crystallized the name's image as sweet, rural, and romantically hopeful.
That image proved powerful and durable. Through the 1960s and into the 1970s, Tammy ranked consistently among the most popular girl's names in the United States, reaching its peak in the early 1970s. The country music world reinforced this dominance: Tammy Wynette (born Virginia Wynette Pugh), whose 1968 hit 'Stand by Your Man' became one of the best-selling country singles of all time, made the name synonymous with a certain kind of heartfelt Southern femininity.
Tammy Faye Bakker, the televangelist and later unlikely LGBTQ+ icon, added another vivid layer to the name's cultural tapestry. By the 1990s Tammy had largely retreated from the birth announcement column, now firmly coded as a baby-boomer name. Yet it retains real warmth and familiarity, and as the mid-century revival continues to reclaim names like Linda, Carol, and Diane, Tammy waits in the wings — a name with genuine emotional history and a melody that still carries.