Little Moe Szyslak is a student at Springfield Elementary School who looks like a child version of Moe Szyslak. When Martin Prince and Database found a note on their lockers signed LMS (later revealed to be Lisa Marie Simpson) they try to find the writer, resulting in thinking it was him. He gets angry and walks away.
His appearance suggests he is a relative of Moe Szyslak. If there is a relation, it would likely be an extended one because he doesn't understand why people keep calling him Little Moe Szyslak, as if he does not know who the normal Moe Szyslak is.
