Soil acidity and nutrient depletion are key constraints to agricultural productivity in Northwestern Ethiopia. Despite the recognized importance of integrated soil fertility management, limited research has been conducted in Northwestern Ethiopia on the combined effects of lime, Rhizobium inoculation, and starter nitrogen on soil properties and Faba bean productivity. A field experiment was conducted in Koga and Injebara using 18 treatment combinations: two Rhizobium strains (FB-37 and FB-1035, plus a control), three nitrogen rates (0, 10, and 20 kg N ha⁻ ¹), and two lime rates (0 and 2 t ha⁻ ¹), arranged in a randomized complete block design with three replications. The results revealed that the integrated application of FB-1035, 2 t ha⁻ ¹ lime, and 10 kg N ha⁻ ¹ significantly improved soil pH (5.68 and 6.51 ), organic carbon (1.89% and 4.16% ), and available phosphorus (15.53mgkg −1 and 46.45mgkg −1 ) at Koga and Injebara respe ctively. Exchangeable acidity (0.73 Cmolkg -1 ) and aluminum contents (0.49Cmolkg ) were notably reduced at Koga by the combined application of FB-1035, 2 t ha and 10 kg ha -1 . Agronomic performance, including nodulation, plant height, and grain yield, were enhanced under integrated application. The highest yields 2.87 t ha⁻ ¹ at Koga and 3.39 t ha⁻ ¹ at Injebara were achieved using FB-1035, 2 t ha⁻ ¹ lime, and 10 kg N ha⁻ ¹, which also offered the highest economic return. Thus, integrating lime, effective Rhizobium strains, and low-rate nitrogen is recommended for improving productivity on acidic soils. Further research is needed to examine the residual effects of lime and strains across varying soil types. -1 -1