Officers caught the drivers speeding on the A83 at Glen Kinglass, Cairndow on Saturday, 27 February.
A 29-year-old man has been charged in connection with road traffic offences after being caught speeding at 122mph in a BMW X5 at about 3.45pm.
That same afternoon at about 5.15pm officers stopped a BMW 6 series and a Mini Cooper that were travelling at speeds up to 123mph on the same road.
Both male drivers, aged 23 and 52 years were charged in connection with road traffic offences after being pulled over.
Inspector Archie McGuire from Argyll and West Dunbartonshire Road Policing Unit said: “Driving at such excessive speeds shows an utter disregard for the safety of everyone else on the road. Such reckless behaviour is a contributing factor in many serious and fatal road crashes.
“Most drivers using our roads do so with respect for the speed limits, driving conditions and other road users, but I would appeal to the minority to please slow down and reduce the chances of collisions and the danger to others.
"Road Policing Officers will continue to respond to concerns from the public about speeding in their local area. We will keep working to educate drivers and take action where appropriate to improve safety and reduce the number of injuries on our roads.”
The charges were carried out by Road Policing Officers at Dunoon.