Lou Graham (February 9, 1857 – March 11, 1903), born Dorothea Georgine Emile Ohben, was a German-born woman who became famous as the madame of a brothel in what is now the Pioneer Square district of Seattle, Washington, United States. She was referred to as the "Queen of the lava beds," with 'lava beds' referring to the area of tide flats that were filled in with sawdust from the sawmill. She became one of the city's wealthiest citizens before dying in her forties.