Seahorse dream meaning is explained below using 4 different sources. Each interpretation is shown with its source.

Interpretation 1 — Nancy Wagaman

Magical or ethereal.

The advantage of being different or unique in your environment.

Copying, borrowing, or building on ideas from others (since the seahorse “copies” the appearance of a horse).

Dreaming of this animal can represent too much or not enough of one of those qualities, or someone or something you associate with the quality or animal.

Consider also the animal’s actions, context, and your feelings about it.

See Animal, Fish, Horse

Source: The Curious Dreamer’s Dream Dictionary Author: Nancy Wagaman

Interpretation 2 — myjellybean

To see a sea horse in your dream, signifies the power of your unconscious. It may also indicate a new perspective or different outlook in life.
Source: My Dream Interpretation Author: myjellybean

Interpretation 3 — Stearn Robinson - Tom Corbett

This tiny creature in a dream augurs pleasant adventures and/or travels in the offing.
Source: The Complete Guide to Interpreting Your Dreams Author: Stearn Robinson - Tom Corbett

Interpretation 4 — Patrica Telesco

(see Horse)
Source: The Language of Dreams Author: Patrica Telesco