Assessment of terrestrial spreading centers under Venus environmental conditions indicates that the major difference between Earth and Venus would be the influence of the enhanced surface temperature on upper mantle temperatures on Venus and the resulting increase in crustal thickness and elevation of isostatically compensated topography. Crust on Venus produced at average spreading centers would be about 15 km thick, in contrast to the average crustal thickness on Earth of about 5 km. We have used this model and the Pioneer Venus altimetry and gravity data to test the hypothesis of Head and Crumpler (1987) [6] that Western Aphrodite Terra represents the location of crustal spreading on Venus. The topographic data are processed such that all points within equally spaced 100 km wide bins parallel to the proposed axis are stacked together and the average value of topography in each bin is calculated providing average profiles out to a distance of 2000 km on either side of the axis. The topography is shown to be very symmetric about the axis with data points less than 1000 km from the axis providing a fit to thermal boundary layer topography comparable to that seen in spreading centers on Earth. At 1000 km on either side of the axis, steep topographic slopes exist; this change in topography could be explained by variations of about 15 km in crustal thickness with the crust being thicker in the central domain, by a ridge jump, or by mechanisms unrelated to crustal spreading. For processing line-of-sight (LOS) acceleration data, we first show that static and dynamic calculations give the same results for track numbers 427–449. This allows us to determine a synthetic orbit track parallel to the cross-strike dis-continuities (CSD's) and to compare it with observed LOS accelerations. Gravity data for this domain were then processed in a manner similar to that for topography. Models give a reasonable fit to the data for half-spreading rates between 0.3 and 0.5 cm/yr. We conclude that a spreading center model for Ovda Regio could account for the observed topography and LOS gravity anomalies if it had the following characteristics: a central domain with a 30 km thick crust that has been spreading at about 0.5 cm/yr for the last 200 Myr over a mantle whose temperature is about 1600°C. At about 200 Myr ago a change in upper mantle temperature of about 100°C is required; prior to this time, the decreased upper mantle temperature would have produced a thinner crust averaging about 15 km at the spreading center. This thinner crust would now lie on the flanks of Ovda Regio at distances greater than 1000 km from the spreading center, and would be in excess of 200 Myr old. On the basis of our analysis, we conclude that the hypothesis that Ovda Regio in Western Aphrodite Terra is the site of crustal spreading on Venus is consistent with the topography and gravity data.