SPAD (disambiguation)

SPAD may refer to:

* Société Provisoire des Aéroplanes Deperdussin, French aircraft manufacturer (1912-1913)
* Société Pour L'Aviation et ses Dérivés, French aircraft manufacturer (1913-1919)
* Blériot-SPAD, French aircraft manufacturer (1919-1921)
* Informal shorthand for a SPecial ADviser in the British Government
* a nickname for the A-1 Skyraider aircraft
* Self-propelled air defence, or self-propelled anti-aircraft
* Signal passed at danger, when a train passes a signal on red
* Simple Plastic Airplane Design
* Single pass albumin dialysis, a simple technique for liver dialysis
* A solid-state electronic photodetector: Single-Photon Avalanche Diode
* Specific antipolysaccharide antibody deficiency, type of primary immunodeficiency