Hippocampus bargibanti, also known as Bargibant's seahorse or the pygmy seahorse, is a seahorse of the family Syngnathidae found in the central Indo-Pacific area. It is tiny, usually less than 2 centimetres (0.79 in) in size and lives exclusively on fan corals. There are two known color variations: grey with red tubercles, and yellow with orange tubercles. It is unknown whether these color varieties are linked to specific host gorgonians.