Rosemary Bikaako Tumusiime (born 17 May 1962) is a Ugandan marketing professional, public administrator, feminist and politician.
She is the founder member of UWESO Entebbe and served as the chairperson of the women organization's National Executive Committee from 2000 to 2006.
Tumusiime further advanced to the National College of Business Studies where she attained a Higher Diploma in Marketing in 1991 and then to Makerere University, where she graduated in 1999 with a Bachelor of Commerce.
In 1997, Tumusiime joined the Civil Aviation Authority of Uganda as a revenue inspector, a position she held up until 2000 when she secured employment as the branch manager for Office Services, Supplies & Equipment (OSSE) Limited.
Tumusiime won both the NRM party's primaries in 2015 and the general elections in 2016 and became a member of the 10th Parliament for the Pearl of Africa representing Entebbe Municipality in Wakiso District.