As well as the annual parades in Belfast and Ballymena, parades will be held in towns including Ballinamallard, Magherafelt and Kilkeel.
A demonstration will also be held in Bangor.
17.
Annual 12th July Orange Order Belfast parade takes place in the City Centre starting at Carlisle Circus. Photo: presseye
18.
Former DUP leader and First Minister of The Northern Ireland Assembly Arlene Foster waves at the crowds on Bedford Street where she presenting for GB News. Photo by Jonathan Porter / Press Eye. Photo: presseye
19.
Annual 12th July Orange Order Belfast parade takes place in the City Centre starting at Carlisle Circus. The parade at Carlisle Circus in north Belfast. Photo by Jonathan Porter / Press Eye. Photo: presseye
20.
Annual 12th July Orange Order Belfast parade takes place in the City Centre starting at Carlisle Circus. The parade makes its way along Bedford Street. Photo by Jonathan Porter / Press Eye. Photo: presseye