Directivity is the effect of the direction of fault rupture in which the distribution of earthquakes and horizontal acceleration in the direction of propagation of the rupture is larger than in other directions. The destruction rate of an earthquake along a fault strongly depends on the directivity of the rupture. Here, we study the directivity of recent large earthquakes in the Iranian plateau by employing the available data, including relocated earthquakes and their aftershocks, the surface ruptures, the fault models estimated by InSAR data, and the maximum recorded PGAs. Our results for the 20 recent large earthquakes in Iran suggest a dominant directivity for most of the events. This finding highlights the importance of considering the directivity effect in earthquake hazard estimation.