Tonica is a feminine name of uncertain origin, but it has been used in English-speaking countries for several decades. The name Tonica is pronounced as toh-NEE-kah in both British and American English. It can also be spelled as Toni. In the United States, Tonica has been given to a small number of girls since the 1960s, with varying levels of popularity over the years. While not extremely common, Tonica is a unique and distinctive choice for parents looking for a less traditional name for their daughter.