1 Squadron

1 Squadron, 1st Squadron or No. 1 Squadron may refer to:

Australia

• No. 1 Squadron RAAF
• No. 1 Airfield Operations Support Squadron RAAF
• No. 1 Security Forces Squadron RAAF

United Kingdom

• No. 1 Squadron RFC, Royal Flying Corps
• No. 1 Squadron RAF, Royal Air Force
• No. 1 Squadron RAF Regiment
• No. 1 Squadron RNAS, Royal Naval Air Service
• 1st Frigate Squadron (United Kingdom)

United States

• 1st Air and Space Test Squadron
• 1st Airborne Command Control Squadron
• 1st Airlift Squadron
• 1st Combat Communications Squadron
• 1st Expeditionary Space Control Squadron
• 1st Fighter Squadron
• 1st Helicopter Squadron
• 1st Reconnaissance Squadron
• 1st Space Control Squadron
• 1st Space Launch Squadron
• 1st Space Operations Squadron
• 1st Special Operations Squadron
• VBF-1, Bombing Fighting Squadron One, U.S. Navy
• Fighter Plane Squadron 1, VF-1, U.S. Navy
• Fighter Squadron 1 (United States Navy), VF-1
• Marine Air Control Squadron 1, U.S. Marine Corps
• Destroyer Squadron 1, U.S. Navy
• Submarine Squadron 1, U.S. Navy
• Coast Guard Squadron One

Other countries

• No. 1 Squadron RNZAF, New Zealand
• No. 1 Squadron IAF, India
• 1 Squadron SAAF, South Africa
• 1st Squadron (Belgium)
• No. 1 Squadron RBAF, Brunei Darussalam