Lake County Airport may refer to:

• Lake County Airport (Colorado) in Leadville, Colorado, United States (FAA: LXV)
• Lake County Airport (Oregon) in Lakeview, Oregon, United States (FAA: LKV)

• 75th Cavalry Regiment (United States)
• 75th Division (Training Support)
• 75th Field Artillery Brigade
• 75th Field Artillery Regiment
• 75th Field Artillery Regiment (United States)
• 75th Fires Brigade
• 75th Fires Brigade (United States)
• 75th Flying Training Wing (U.S. Army Air Forces)
• 75th Guards Tank Division
• 75th Highlanders
• 75th Infantry Division (Germany)
• 75th Minnesota Legislature
• 75th (Mississauga) Battalion, CEF
• 75th New York State Legislature
• 75th Observation Group
• 75th oscars
• 75th Oscars
• 75th Pennsylvania Infantry Regiment
• 75th Pennsylvania Volunteer Infantry
• 75th pope
• 75th Ranger Infantry Regiment (Airborne)
• 75th Regiment
• 75th Regiment Indiana Infantry
• 75th Scripps National Spelling Bee
• 75th (Shropshire Yeomanry) Medium Regiment, Royal Artillery