Blanche Robinson (Mrs. Martin Hennion Robinson, née Williams; 18 May 1883, near Liberty, Kansas – 19 August 1969, Los Angeles) was an American composer and well-known piano accompanist. During her prolific years as a composer, she lived in New York City. During her more active years as a piano accompanist, she lived in Los Angeles. In her published music, she was known as Mrs. M. Hennion Robinson or Mrs. M. Hennion-Robinson.