Clara Louise Kellogg (July 9, 1842 – May 13, 1916) was an American singer.
Clara Louise Kellogg was born in Sumterville, South Carolina, the daughter of Jane Elizabeth (Crosby) and George Kellogg. She received her musical training in New York City and first sang in opera there in 1861. Her fine soprano voice and artistic gifts soon made her famous. She appeared as prima donna in Italian opera in London and at concerts in 1867 and 1868, and from that time till 1887 was one of the leading public singers. She appeared at intervals in London, but was principally engaged in America.