| 42 Commando Royal Marines | |
|---|---|
 Unit badge | |
| Active | 1943 – present |
| Country |  United Kingdom |
| Branch | |
| Type | Commando |
| Size | One battalion |
| Part of | 3 Commando Brigade |
| Garrison/HQ | Bickleigh Barracks, Devon |
| Nickname(s) | Royals Bootnecks The Commandos Jollies |
| Motto(s) | Per Mare Per Terram (By Sea By Land) (Latin) |
| Engagements | |
| Commanders | |
| Current commander | Lt Col James A E Lewis OBE RM |
| Captain-General | King Charles III (Captain-General, Royal Marines) |
42 Commando is a fighting unit within the Royal Marines 3 Commando Brigade. Based at Norton Manor, Royal Marines Condor and 42 Commando are based at Bickleigh Barracks, Plymouth. Personnel regularly deploy outside the United Kingdom on operations or training. All Royal Marines personnel will have completed the Commando course at the Commando Training Centre (CTCRM) at Lympstone in Devon, entitling them to wear the green beret, with most attached personnel having completed the All Arms Commando Course.