[1] Leah was born in Busembatya, in Iganga District, circa 1991, into a family of six siblings; all female.
[2] On Sunday 26 October 2014, Leah Kalanguka, representing Iganga District, was crowned as Miss Uganda 2014, at a ceremony held at Speke Resort, in Munyonyo, beating off 19 other contestants.
She was away in Tooro, helping to teach youths how to grow cabbages, something her mother, who also hails from the sub-region, had taught her.
[2] Leah represented Uganda in Miss World 2014 pageant held in London, United Kingdom, in December 2014.
[4][5] In 2015 Leah made a guest appearance in Sipi the Movie, directed by Jayant Maru, and featuring Stephen Kiprotich and Ugandan actor Patriq Nkakalukanyi.