A ceremony was held at St Brigid's Church which was addressed by Orana Local Area Commander Superintendent David Simmons and Western Region Commander Assistant Commissioenr Geoff McKechnie.

Since 1862, 252 NSW Police officers have died in the line of duty.

NSW Police Commissioner, Andrew Scipione said National Police Remembrance Day was a day to stop and remember those who had made the ultimate sacrifice.

"National Police Remembrance Day is a time to reflect on the courage and selfless sacrifice made by those police officers who have lost their lives in the line of duty, as well as paying tribute to their collective and individual legacies," he said.

"Every day hundreds of brave men and women go to work not knowing what the day will bring. At times they face adversity and risk their lives to help others.

"Our thoughts are with the extended police family of all those we have loved and lost. They will never be forgotten."

Dubbo MP Troy Grant, who was himself a police officer, said National Police Remembrance Day was an important time to honour the sacrifices made by police officers.

"It's a special day for all members of the force past and present, we have all known someone who has lost their lives in the line of duty," he said.

"It's also a day to thank and remember the brave men and women put themselves on the frontline every day in service of our community.

"Police officers confront some of the most dangerous situations to ensure the safety of the community.

"May we never forget the sacrifices made by the heroic men and women of the NSW Police Force."

A national service was held at the National Police Memorial in Canberra.