NACDA may refer to:

• National Archive of Computerized Data on Aging
• National Association of Collegiate Directors of Athletics

• Gabardine (album)
• Gabardine (band)
• Gabardini Lictor
• Gaba receptor
• GABA receptor agonist
• GABA receptor antagonist
• Gaba receptors
• GABA receptors
• Gabaret Island
• Gabar (Fitzroy Island), Queensland
• Gabar goshawk
• Gabar Island
• Gabar Island, Queensland
• G.A. Barnard
• Gabashvili
• Gabas (river)
• Gabat, Pyrénées-Atlantiques
• GABA transaminase
• Gabazine
• GABBA
• Gabba (band)
• Gabba d'Hirutha d'Bethnahrin
• Gabba Gabba Hey
• Gabba Gabba Hey (album)
• Gabba Gabba Hey: A Tribute to the Ramones