Jacob L'Okori Oulanyah (23 March 1965 – 20 March 2022) was a Ugandan agricultural economist, lawyer, and politician, who served as the Speaker of the 11th Parliament of Uganda since 2021 until 2022. He was elected to that position on 24 May 2021, after defeating his tenacious rival the then incumbent Speaker Rebecca Alitwala Kadaga. He served as Deputy Speaker of the Ugandan parliament, from May 2011 until May 2021. Oulanyah was also the member of parliament representing the Omoro County constituency, Omoro District, Acholi sub-region, in the Uganda's Northern Region.