Publicist Heidi Robinson-Fitzgerald said Manzarek died on Monday at the RoMed Clinic in Rosenheim, Germany, surrounded by his family.
He had been battling bile duct cancer.
Manzarek founded The Doors after meeting then-poet Jim Morrison in California.
The band went on to become one of the most successful rock groups to emerge from the 1960s and continues to resonate with fans decades after Morrison's death brought the band to an end.
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It's important to treat yourself well. Constantly deferring to others will deprive you of the finer things in life. Carve time out of your busy schedule to pamper yourself. Taking a nap, solitary walk or hot bath will revive your spirits. Get into the habit of spending more money on creature comforts. Treat such as gourmet food, beautiful clothes and intriguing books are investments in your happiness. Others may object at being put farther down on your list of priorities, but that's their problem.More