Emery (or Emory) Valentine (1858 – September 9, 1930) was an American politician and the sixth mayor of Juneau, Alaska, from 1908 to 1912 and from 1917 to 1919.

Valentine came to own a number of stores throughout Colorado and Montana, from 1876 to 1886, when he left the states and settled in Juneau in May 1886.

There, he bought a plot of land from Joe Juneau and began his own jewelry store, E. Valentine Jeweler.

He would have built a jewelry store in Skagway, but he faced competition from Herman Kirmse, a well-known jeweler.

It was the same dock that local gangster Jefferson Randolph "Soapy" Smith was killed in a gunfight by Frank Reid on July 8, 1898.