This is a list of the craters on the Moon:
A
B
C
D
E
F
G
H
I
| Ian | (Scottish male name) |
| Ibn Battuta | Abu Abdullah Muhammad Ibn Battuta |
| Ibn Firnas | Abbas Ibn Firnas |
| Ibn Yunus | Abu Muhammad Ibn-Rushd (Averrdes) |
| Ibn-Rushd | Averroes |
| Icarus | Icarus (mythology) |
| Ideler | Christian Ludwig Ideler |
| Idel'son | |
| Il'in | |
| Ina | (Latin female name) |
| Ingalls | Albert L. Ingalls |
| Inghirami | Giovanni Inghirami |
| Innes | Robert T. A. Innes |
| Ioffe | Abram Fedorovich Ioffe |
| Isabel | (Spanish female name) |
| Isaev | Aleksei Mihailovich Isaev |
| Isidorus | St. Isidore of Seville |
| Isis | (Egyptian goddess) |
| Ivan | (Russian male name) |
| Izsak | Imre Izsak |
J
| J. Herschel | John Herschel |
| Jackson | John Jackson |
| Jacobi | Karl Gustav Jacob Jacobi |
| Jansen | Zacharias Janszoon |
| Jansky | Karl Jansky |
| Janssen | Pierre Janssen |
| Jarvis | Gregory Jarvis |
| Jeans | James Jeans |
| Jehan | (Turkish female name) |
| Jenkins | Louise Jenkins |
| Jenner | Edward Jenner |
| Jerik | (Scandinavian male name) |
| Joliot | Frederic Joliot-Curie |
| Jomo | (African male name) |
| José | (Spanish male name) |
| Joule | James Joule |
| Joy | Alfred H. Joy |
| Jules Verne | Jules Verne |
| Julienne | (French female name) |
| Julius Caesar | Julius Caesar |
K
L
M
N
O
P
Q
| Quetelet | Adolphe Quetelet |
R
S
T
U
| Ukert | Friedrich August Ukert |
| Ulugh Beigh | Ulugh Beg |
| Urey | Harold Urey |
V
W
X
| Xenophanes | Xenophanes |
| Xenophon | Xenophon |
Y
| Yablochkov | Pavel Yablochkov |
| Yakovkin | |
| Yamamoto | Issei Yamamoto |
| Yangel' | |
| Yerkes | Charles Tyson Yerkes |
| Yoshi | (Japanese male name) |
| Young | Thomas Young |