Radiation of the electromagnetic waves (THz waves) in the terahertz frequency region from atomic clusters illuminated by intense femtosecond laser pulses is studied. The power of the THz wave from argon clusters is ∼40 times larger than that from argon molecular gas. The enhancement of the THz radiation originates from strong laser energy absorption by the clusters. The angular distribution of the power and the polarization state of the radiated THz wave are compared to the predictions of the several models of the THz radiation from the laser produced plasma.