A mapping T defined on a normed linear space X and taking values in X is said to be contractive (nonexpansive) if whenever x and y are distinct points in X, \\Tx - Ty\\ < \\x - y\\ (\\Tx - Ty\\ less-than-or-equal-to \\x - y\\). In this paper we prove that every contractive mapping on a spherically complete non-Archimedean normed space has a unique fixed point.