Emma Sophie Hartmann (1807-1851) was a Danish composer who composed under the pseudonym Frederik H. Palmer. She was married to the composer Johan Peter Emilius Hartmann (1805–1900). They lived on the second floor of the Zinn House at Kvæsthusgade 3 in Copenhagen.
Her first published composition was music for a Student Association dance in February 1841. Five pamphlets with a total of 22 Romances and Songs were later published with lyrics by prominent names including Christian Winther, Frederik Paludan-Müller and Swedish Johan Ludvig Runeberg. The first pamphlet was published in 1848 by Horneman & Erslev but the last two were published posthumously. The title lead featured both her real name and her pseudonym when her collected romances and songs were published in 1892.
Her pseudonym was revealed in 1869 when the Manual of anonymity and pseudonyms in Danish literature was published.
A collection of her piano pieces was published privately by her youngest son Frederik (Fritz) Hartmann in 1908. A new issue was published by DCM in 2003.