The vapor-pressure data of iron was measured using the combination of a Knudsen effusion cell and a high-temperature, thermogravimetric balance. Most of the available vapor-pressure data for iron have been taken below 1600 K. In contrast, the current data have been collected from 1573 to 1973 K, and these values should help fill a void in the data near the melting point of iron. Although the measured vapor pressures have a similar temperature dependence as literature values of iron vapor-pressure data, the current data is consistently lower than these previous values by roughly a factor of 2.