Geoffrey Bwalya Mwamba (born 15 March 1959) is a Zambian businessman and politician who is currently vice president of the United Party for National Development (UPND) and Member of Parliament for Kasama District in the Northern Province of Zambia. Under the Patriotic Front government of President Michael Sata, he served as Minister of Defence from 2011 to 2013.
Mwamba was expelled from the ruling PF in February 2014. On 23 July 2015, he endorsed the main opposition party, the UPND. On 3 June 2016 he successfully filed his nomination papers to stand as the running mate of UPND candidate Hakainde Hichilema in the August 2016 presidential election.