The rate constants for the C6H5 + NO --> C6H5NO reaction have been measured with the cavity-ring-down method between 298 and 500 K to be k = 10(-11.35+/-0.06) exp[(+433+/-111)/T] cm(3)/s. The effect of pressure was examined at 388 K bysextupling of the total pressure from 20 to 120 Torr, with no significant increase in the measured rate constants within the scatter of the data. this is consistent with the k/k(infinity) ratio predicted for 388 K using the known literature value of k(infinity) for the unimolecular decomposition of nitrosobenzene. Out result for C6H5 + NO compares reasonably with the values for other R(.) + NO association reactions.