That's a great question! While the Apollo program, which included Apollo 13, was named after the Greek god Apollo, Apollo 13 itself was not named after the god.

The Apollo program was named after Apollo because:

* Apollo was the Greek god of light, music, poetry, healing, and archery. The program's focus on exploration and discovery seemed to align with these attributes.

* Apollo was associated with the Sun. This was symbolic of the Apollo program's goal of reaching the Sun's closest neighbor, the Moon.

However, individual Apollo missions were assigned numbers. Apollo 13 was simply the 13th mission in the program.