The Blue Dahlia is a 1946 film noir starring Alan Ladd and Veronica Lake.

(The) Blue Dahlia may also refer to:

• The Blue Dahlia (ballet), a ballet first presented in Russia in 1860
• The Blue Dahlia, a jazz band featuring Athan Maroulis, and the band's 2000 album
• "Blue Dahlia", a song by the Gaslight Anthem from Handwritten (The Gaslight Anthem album)
• "Blue Dahlia", a song by Luke Doucet from Aloha, Manitoba
• Blue Dahlia, a work by Nora Roberts

• Dahlia § Cultivation for a long-standing prize for breeding a blue dahlia

This disambiguation page lists articles associated with the title The Blue Dahlia.
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