A man pulled a knife on a cashier at the West Park Liquor Store, at 3722 57 Avenue, on Saturday, around 3 p.m.
Red Deer City RCMP said the man took off with a bottle of alcohol and an undisclosed amount of money.
No one was hurt during the incident.
Police described the suspect as being around 40 years old, 1.8 metres (six foot two), skinny, with dark brown hair and a tattoo on his neck. He was wearing a light-coloured hoodie, ball cap and jeans at the time of the robbery.
West Park Liquor Store owner Kim Leasak said he sent the cashier who was robbed home after the incident, but he said she did everything right. He said it’s the first time in six years that they have had a robbery.