LFHS may refer to:

• Bourg - Ceyzériat Airport in France (ICAO code)
• Lake Forest High School (Illinois), Lake Forest, Lake County, Illinois, USA
• Lake Forest High School (Delaware), Felton, Kent County, Delaware, USA
• Little Flower High School Hyderabad, a school in Hyderabad, Andhra Pradesh, India
• Livermore Falls High School, Livermore Falls, Maine, USA

• Markus Thatner
• Markus Thorbjornsson
• Markus Thorbjörnsson
• Markus Thätner
• Markus Ulbig
• Markus Unger
• Markus Vinzent
• Markus Vogel
• Markus von Jabornegg
• Markus Wagesreiter
• Markus W. Covert
• Markus Weisbeck
• Markus Werba
• Markus Wheaton
• Markus White
• Markus Windisch
• Markus Wolfahrt
• Markuszewski family
• Markus Ziereis
• Markus Zillner
• Markus Zusevics
• Markus−Yamabe conjecture
• Mark Uth
• Mark Valenti
• Mark Van Ameyde