His name is derived from "Bob the Sponge", the host of Hillenburg's (the creator of the show) comic strip The Intertidal Zone that he originally drew in 1989 while studying at the California Institute of Arts
Sponge bob is in fact a sponge. It even states in his name.
Retardpants cuz thats what he is and we call him sponge bob cuz hes a sponge and his name is bob and his real name is retard and hes a sponge
no, its bob sponge
Bob
DoingThe Sponge . It is featured in "TheChaperon".
Stephen Hillenburg.
quackalakaaa!
Robert Squarepants. They only call him Spongebob, just because he's a sponge. DDDDDDDDdddddddddddUUUUUUUUUUUUuuuuuuuuuuuuuHHHHHHHHHHhhhhhhhhhh! From, Bryan Hollick
Goo Lagoon.
yes they are.
Dennis.
Krusty Krab