The Omega Board was an electromechanical display mounted in Grand Central Terminal used to display the times and track numbers of arriving and departing trains. Shaped like a large black block with rows of flip panels to display train information on the front, the Board was visually incongrueous with the rest of the terminal - its boxy shape stood out like a sore thumb against the classical design of the Terminal.

The Omega Board was replaced with a more aesthetically fitting electronic display during renovation of Grand Central Station in the 1990s.