Juliana Mary Louisa Probyn, known as May Probyn (12 April 1856 – 29 March 1909) was an English poet, one of a group of lively and somewhat political British fin de siècle poets. She published a novel in 1878, and became a Catholic convert in the following decade.
Thomas Westwood the fishing writer was a friend. Probyn is buried in the Roman Catholic cemetery at Mortlake.
Her poem "Is it nothing to you" is in the Oxford Book of English Verse.