Syed Alimuddin Ahmad (Bengali: সৈয়দ আলীমুদ্দীন আহমদ; 1884 - 1920), popularly known as Master Saheb (Bengali: মাস্টার সাহেব), was a Bengali bodybuilder and wrestler. He participated in the anti-British independence movement as an underground activist and revolutionary, as a part of the Dhaka Mukti Sangha organisation. Ahmed rose to prominence after the organisation was absorbed into Subhas Chandra Bose's Bengal Volunteers during the mayorship of Chittaranjan Das in Calcutta.