Tuida Cove (Bulgarian: залив Туида, ‘Zaliv Tuida’ \'za-liv tu-'i-da\) is the 4.13 km wide cove indenting for 1.56 km the southeast coast of Nelson Island in the South Shetland Islands, Antarctica. It is entered east of Ivan Alexander Point and west of Slavotin Point. The cove's shape is enhanced as a result of glacier retreat in the late 20th and early 21st century.
The feature is named after the ancient and medieval fortress of Tuida in southeastern Bulgaria.
Tuida Cove is located at -62.3278°N -58.9514°W.