Not really, for a dam to be usable for pumped hydro it needs both an upper reservoir and a lower reservoir, with enough height difference between them, while a dam for non-pumped hydro needs only an upper reservoir (it can discharge directly into a river, for instance). Some existing dams can be used as the upper reservoir or the lower reservoir of a pumped hydro plant, but for that there has to be a suitable location for the other reservoir nearby.