FHL

FHL may refer to:

• Fachhochschule Lübeck, a German university
• Familial hemophagocytic lymphohistiocytosis
• Family History Library, a genealogical research facility in Salt Lake City, Utah, United States
• Federal Hockey League, an American ice hockey league
• Federal Hockey League (Canada), a defunct Canadian ice hockey league
• Flexor hallucis longus muscle
• Friday Harbor Laboratories, a marine biology field station of the University of Washington

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