A review by the Scottish Funding Council (SFC) - which decides how much universities get for students on each course - has proposed to cut the per capita funding for planning from £6,415 to £5,000 a year. English planning schools by contrast get £7,198, the RTPI said.
RTPI Scotland has warned that the proposed 22 per cent cut "would mean that it may no longer be possible to offer appropriately validated planning courses in Scotland to the RTPI's required standards of excellence".
National director Veronica Burbridge said: "These cuts could mean the end of planning education in Scotland as we know it, which would be a terrible end to a proud history of free-thinking and positive change."
Planning is taught at Aberdeen, Dundee, Glasgow, Heriot-Watt and Strathclyde Universities to 500 students in all. The SFC said it is analysing responses before taking final decisions.