No. In comics, Wolverine is Weapon X, and in the films, Deadpool is Weapon XI. Actually, Weapon X is just the Canadian government program in which Wolverine, Deadpool and Sabretooth, among others, had been enrolled. Used as a codename, it could apply more to Garrison Kane, a former temmate of Cable who had cybernetic limbs implanted by the program and took the name as an alias..