The invention relates to a ventilated compressor rotor and a turbine engine having the same. The turbine engine includes a plurality of compressor rotors that include ventilation slots (210) to vent the spaces between adjacent compressor rotors. Each compressor rotor is formed from a flat disk of material having first and second circular faces. A circular ridge (202,204) of material protrudes outward from the one of the circular faces of the disc adjacent an outer edge (200) of the disc. The ventilation slots (210) are formed in the circular ridge (202,204) of material. Each ventilation slot (210) is a depression in the circular ridge (202,204) of material, the depression having a longitudinal axis that extends substantially in a radial direction of the disc (210). A corresponding manufacturing method is also provided.