I'm guessing you mean stages to LEO, but technically Apollo was a six-stage rocket. 1. Saturn V first stage 2. Saturn V second stage 3. Saturn V third stage

I'm guessing you mean stages to LEO, but technically Apollo was a six-stage rocket. 1. Saturn V first stage 2. Saturn V second stage 3. Saturn V third stage 4. Lunar module descent stage 5. Lunar module ascent stage 6. Service module for Earth return.