An experimental study of the distance dependence of intramolecular, long-distance hole transfer in organic radical cations has been performed. The aromatic donor and acceptor groups, biphenyl and naphthalene (D and A), were held at fixed distances by five rigid saturated hydrocarbon spacer groups. The kinetics of the transfer reactions (D{sup +}SA {yields} DSA{sup +}) were monitored by transient absorption of the hole donor, 4-biphenylyl radical cation. Intramolecular hole-transfer rate constants were determined for this process and compared with previous results for electron transfer in radical anions of the identical molecules. A comparison of the hole- and electron-transfer results reveals that the attenuation of the rate constants, and therefore the electronic coupling, as a function of distance is the same for both within the limits of error of the experiment.