"Romulan Commander" may refer to one of two characters from Star Trek: The Original Series.
- Charvanek - a female Romulan who first appeared in the episode "The Enterprise Incident"
- Keras - a male Romulan who first appeared in the episode "Balance of Terror"
Both characters went unnamed in their canonical appearances. The names cited above appear to be the ones most commonly used in non-canon works, though not exclusively.