A three-photon resonance-enhanced multiphoton ionization spectroscopic study on N2O is carried out in the spectral range from 80000 cm(-1) up to the lowest ionization limit at 103963 cm(-1) High-resolution photoelectron spectroscopy is used to identify and characterize the observed excited states. Eighteen origins are reported which have either not been assigned before or are reassigned now. Moreover, the photoelectron spectra taken at higher-lying resonances often show extensive vibronic coupling with the near-resonant vibronic manifolds built on lower-lying origins.