  Recently it has been proposed that Wilson loops in high-dimensional
representations in N=4 supersymmetric Yang-Mills theory (or multiply wrapped
loops) are described by D-branes in AdS_5 x S^5, rather than by fundamental
strings. Thus far explicit D3-brane solutions have been only found in the case
of the half-BPS circle or line. Here we present D3-brane solutions describing
some 1/4 BPS loops. In one case, where the loop is conjectured to be given by a
Gaussian matrix model, the action of the brane correctly reproduces the
expectation value of the Wilson loop including all 1/N corrections at large
\lambda. As in the corresponding string solution, here too we find two
classical solutions, one stable and one not. The unstable one contributes
exponentially small corrections that agree with the matrix model calculation.
