We present a search for neutral supersymmetric Higgs bosons decaying to τ pairs produced in pp collisions at s√=1.96  TeV. The data, corresponding to 310  pb−1 integrated luminosity, were collected with the Collider Detector at Fermilab in run II of the Tevatron. No significant excess above the standard model backgrounds is observed. We set exclusion limits on the production cross section times branching fraction to τ pairs for Higgs boson masses in the range from 90 to 250  GeV/c2.