Cocculinella minutissima is a species of small, deep water sea snail, a marine gastropod mollusk in the family Cocculinellidae, the limpets.
The shell grows to a size of 3.5 mm, width 1.5 mm and height 1 mm. The thin, white shell is long and narrow with growth rings. The sides are almost parallel,slightly bent, slightly truncated at the back. The nipple-shaped apex stands out and drops quite sharply backwards. It is located about in front of the center. The front drops in a straight line and is slightly convex at the rear.
This marine species occurs in the Pacific Ocean off Japan and in the Indian Ocean off the Andaman Islands.
