The thermal conductivity of diethyl ether, diisopropyl ether, and di-n-butyl ether in the liquid Phase was reported. The measurements, covering a temperature range from (233 to 373) K and pressure LIP to 30 MPa, have been performed by a transient hot-wire technique with two anodized tantalum hot wires. The experimental data have been represented by polynomial functions of pressure and temperature for the purpose Of interpolation. The relative uncertainty of the present thermal conductivity data was estimated to be +/- 2.0 % with a coverage factor of k = 2.