Other
- Typhoon Dolphin (2008), a typhoon in the 2008 Pacific typhoon season
- Dolphin (structure), a fixed man-made structure which is not connected to shore
- Dolphin Gull, a gull native to southern Chile and Argentina, and the Falkland Islands
- Dolphin Square, a large London apartment block
- "Dolphins", the common name for Submarine Warfare insignia
- Dolphin School (disambiguation), the name of three schools in the United Kingdom
- Dolphin Senior Public School, a school in the province of Ontario, Canada
- Dolphin Stradivarius, a violin built by Antonio Stradivari in 1714
- Dolphin (locomotive), belonging to the Groudle Glen Railway on the Isle of Man
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