The singing actor will play the intimate nightspot, which is closing its doors at the end of December, Nov. 13-17.
Details about Gallagher's show will be announced at a later time.
Gallagher has appeared on Broadway in Guys & Dolls, Noises Off, Long Day's Journey Into Night and more.
Feinstein's at Loews Regency is located at 540 Park Avenue at 61st Street. For more information and reservations, call (212) 339-4095 or visit FeinsteinsAtTheRegency.com.