In the present study we examine the electronic spectrum of OThF, a molecule chosen on the basis that it may be less electronically complex than UO2. For example, the formal ground state electronic configuration of O 2-U 4+ (5f 2 )O 2-gives rise to many more low energy states than that of O 2-Th 3+ (7s)F -. Previously OThF has been observed in the gas phase using mass spectrometry and the ionization energy (IE) derived from the appearance potential was 5.9 eV . There is almost no other information for OThF in the literature. Here we present laser induced fluorescence (LIF), dispersed laser induced fluorescence (DLIF), and resonantly enhanced 2-photon ionization (RE2PI) spectra for OThF. RE2PI was also used to make an improved determination of the IE.