SO₂/H₂O pressure broadening and frequency shifting coefficients, γ⁰ and δ⁰, are reported for 23 unblended absorption lines in the infrared vibration- rotation band v₂ of H₂O between 1400 and 1800cm^-l. The data were obtained from FTIR spectra recorded with a resolution of 0.03cm^-1. Values for γ⁰ and δ⁰ are found to he between 0·6 and 0·1 cm^-1 atm^-1 and +0·10 and –0·13 cm^-1 atm^-1, respectively.