Piotr Marcin (Peter) Gajewski (born January 12, 1959 in Warsaw, Poland) is a Polish former politician, artistic director, conductor, and founder of the National Philharmonic, currently in residence at the Music Center at Strathmore in North Bethesda, Maryland, in the United States. It is a successor ensemble to the . He served on the Rockville City Council in Maryland from 2007 to 2011.