Major Sinclair Memorial Pipe Band is based in Ballyclare, County Antrim, Northern Ireland, and was formed in 1957 through the amalgamation of the William Johnston Memorial and Emanuel Pipe Bands. The band is named after Major John Maynard Sinclair, the Ulster Unionist Finance Minister who died in the Princess Victoria ferry disaster in 1953.

The band wears the Black Stewart tartan and has long been active in local parades, festivals, concerts and pipe band competitions across Northern Ireland and Scotland. Earlier RSPBANI material listed the band in Grade 4A, while current public profiles show it active with Grade 3A and Grade 4B bands.

Today, Major Sinclair Memorial Pipe Band continues to represent Ballyclare through performance, competition and community activity.