| Abbreviation | Definition |
|---|---|
| AAMYC | Ann Arbor Model Yacht Club |
| ABYA | Anchor Bay Yachting Association |
| ABYC | American Boat and Yacht Council |
| ACMY | Aft Cabin Motor Yacht |
| ARYA | Australian Radio Yachting Association |
| AVY | Apartment Villa Yacht |
| AYC | Anacortes Yacht Charters |
| AYH | American Yacht Harbor |
| AYN | Army Yachting Node |
| AYS | Annapolis Yacht Sales |
| BMT | Boat, Motor, and Trailer |
| BPY | BlueWater Power Yachts |
| BSYA | Black Sea Yachtsmens Association |
| BUI | Boating Under the Influence |
| BWY | Blue Water Yachting |
| BYC | Balboa Yacht Club |
| BYC | Barbados Yacht Club |
| BYC | Barrie Yacht Club |
| BYC | Barrington Yacht Club |
| BYC | Bayview Yacht Club |