Pilot and former RAF flight lieutenant David Traill, 51, and police officers Kirsty Nelis, 36, and Tony Collins, 43, were added to an existing memorial at the Scottish Police College at Tulliallan, Fife.
All three were were on board the Eurocopter craft and died when it crashed on the Clutha bar. Seven others who were in the pub were also killed.
Chief Constable Sir Stephen House and the Princess Royal gathered to mark the 10th anniversary of the Scottish Police Memorial and honoured those officers who have died in the line of duty.
The memorial is the work of the Scottish Police Memorial Trust and plaques bearing officers' names who died while serving with Scots police forces.
Grieving relatives of fallen officers also attended the service.
Sir Stephen said: "Police officers are committed to serving their local communities, protecting the public and keeping people safe.
"The officers we are commemorating today made an important contribution to the communities they served.
"It is right that we should honour them and that their names be added to the Scottish Police Memorial, a fitting reminder to us all of their contribution to the service and to Scotland.
"Our thoughts are, as always, with their families and friends."
The Eurocopter EC 135 came down on the Clutha Bar in Stockwell Street on Friday November 29.
Christine Fulton MBE, Co-Founder of the Scottish Police Memorial Trust, said: "The memorial is a tangible reminder to the families that their loved ones name will never be forgotten and will live on not just for this generation but for every generation to come.
"We are honoured that HRH, The Princess Royal was able to join us, her support for the families and recognition of their loss is much appreciated."
Her husband, Constable Lewis Fulton, was stabbed to death on duty while attending a disturbance near the Gorbals in 1994.