The infrared absorption of single crystals of anhydrous strontium formate has been measured in the region 4000 to 500 cm−1. The internal fundamentals of two sets of crystallographically non-equivalent types of formate ions are identified. Frequencies of external fundamentals are tentatively inferred from absorption bands appearing in the second order spectrum. Measurement of laser excited Raman spectra in the region 700–10 cm−1has yielded assignments for all of the expected translational modes. None of the librational modes were observed.