Montgomery District is an administrative district of the former Punjab Province of British India, in what is now Pakistan. Named after Sir Robert Montgomery, it lay in the Bari Doab, or the tract between the Sutlej and the Ravi rivers, extending also across the Ravi into the Rechna Doab, which lies between the Ravi and the Chenab. The administrative headquarters was the town of Montgomery, present-day Sahiwal. In 1978, the name of Montgomery District was changed to Sahiwal District.