Gabrielle-Marie Niel was a French etcher.

Born in Poligny, Jura, Niel was the daughter of Jules Niel, who was at the time an administrator of the Jura subprefecture. After receiving initial lessons, and advice, from Émile Wattier, a friend of her father's, she studied under Charles Méryon. She is chiefly noted for producing etchings of old Paris and of other cities, as well as images of Italy and Algeria. She first exhibited at the Paris Salon in 1866, and continued to work until sometime after 1875. Her prints show the influence of Meryon in their style. Alfred Cadart published her pictures of Paris and Algeria, while other prints appeared in the journal L'art. She died in Paris.