Kerry said Yemen has made important strides in transitioning toward a democratic government.
"Yemenis from all walks of life have come together to chart a new course for their country through their National Dialogue, setting an example for the region of meaningful change through negotiation, inclusion and reconciliation," he said in a statement.
Yemeni President Abdu Rabbo Mansour Hadi in March opened a national dialogue with the aim of drafting a new constitution ahead of general elections in 2014.
Hadi took power after a political deal ended the tenure of longtime President Ali Abdullah Saleh, who survived an assassination attempt at the height of the so-called Arab Spring.
"We will continue to support the Yemeni people in their efforts to build a unified, stable, democratic and prosperous Yemen," Kerry said.
Human rights groups say Yemen still has a long way to go before it can erase a long history of abuse and conflict.
Kerry's comments came as Yemenis marked Unity Day, the anniversary of the 1990 unification of North and South Yemen.
Lytro unveils camera that can focus a photo after shooting it
Moore to attend retreat in to avoid Kutcher's wedding