<p>This article investigates how the Green Human Resource Management (GHRM) capability is associated with Sustainable Development Goal (SDG) performance and better Banking Management in Gulf financial institutions. Based on a cross-sectional survey of managers in Qatar and Bahrain, study measured GHRM, SDG8 (decent work and economic growth), SDG12 (responsible consumption and production) and SDG13 (climate action) – with control variables bank size, age, ownership form, market share, ESG disclosure—as well as Banking Management. Based on PLS-SEM with boots-trapping, study found that GHRM positively influenced all the SDGs including 8, 12 and 13 and every one of them in turn had positive impact on Banking Management. A relatively weaker alternative direct pathway was found from GHRM to Banking Management, resulting in complementary mediation with the strongest indirect effect coming from SDG 8 then SDG 12 and lastly SDG 13. The model accounted for a good amount of variance in Banking Management. Multi-group analyses indicated largely consistent relationships between the countries, with a stronger SDG 12 pathway in Qatar. Sensitivity tests confirmed the robustness of results. The findings indicate that Green HRM is associated with higher SDG-related performance and that these SDG domains are linked to banking management outcomes, with evidence of complementary indirect associations. Given the cross-sectional and perceptual nature of the data, the results should be interpreted as associational patterns consistent with the proposed mediation logic, rather than as evidence of causal mechanisms.</p>