PMF may stand for: Presidential Management Fellows Program, a US government fellowship Potential of mean force, in chemistry, potential giving the average force on a particle from a set of molecules Probability mass function, in statistics, function giving the probability that a variable takes a particular value Proton motive force, a measure of energy in biological reactions Peptide mass fingerprinting, an analytical technique for protein identification Private military firm, a provider o… (More on Pmf)