We present a lovely connection between the Fibonacci numbers and the sums of inverses of (0, 1)− triangular matrices, namely, a number S is the sum of the entries of the inverse of an n × n (n ≥ 3) (0, 1)− triangular matrix iff S is an integer between 2 − Fn−1 and 2 + Fn−1. Corollaries include Fibonacci identities and a Fibonacci type result on determinants of family of (1,2)-matrices.