Are you maybe referring to the Mercury and Gemini programs?
The space program before the Apollo missions was called the Gemini program. There were a total of 10 manned Gemini missions between 1964 and 1966, which focused on testing rendezvous and docking maneuvers essential for the eventual Apollo lunar missions.
The moon missions were given the name of Apollo.
The Apollo missions were named more or less in order. After Apollo 1 was destroyed in a fire there were no other manned missions until Apollo 7. As such, starting at Apollo 7, the missions were named in order. Apollo 11 was 4th mission after Apollo 7.
The Apollo space missions are numbered from Apollo 7 to 17.
The missions that landed on the moon as part of NASA's Apollo program were Apollo 11, Apollo 12, Apollo 14, Apollo 15, Apollo 16, and Apollo 17. These missions successfully landed astronauts on the lunar surface between 1969 and 1972.
The Apollo space missions are numbered from Apollo 7 to 17.
Apollo
APOLLO
The moon-landing missions were part of the Apollo program
The Apollo space missions were named after Apollo, the Greek god of the sun, light, music, and prophecy. The name was chosen to reflect the goal of landing humans on the sunlit surface of the moon and returning them safely to Earth.
The Apollo program consisted of a total of 17 missions, out of which 6 of them landed humans on the Moon successfully. These missions were Apollo 11, 12, 14, 15, 16, and 17.