The study investigates the effect of public debt on economic growth in Kenya, between 1980- 2013.The choices of period was guided by data availability and escalation of Kenya’s public debt. The main problem is that, Kenya government has been relying heavily on public debt, aid and grants as a source of finance. This has resulted to a buildup of the level of public debt stock which has led to funds being diverted to debt servicing at the expense of economic development and domestic consumption.