A 25 year-old, named locally as Hotteline Lozama, was pulled from a shopping centre in the capital, and was said to be "conscious and in good form".
A second woman, Anna Zizi, was found alive and singing in the rubble of Port-au-Prince's Roman Catholic cathedral. Rescue workers wept and hugged each other as Ms Zizi, caked in debris and dust, was placed on a makeshift stretcher, put on a drip, covered with a heat-conserving wrap and driven by truck to a hospital, witnesses said.
"It was an amazing thing to witness, no one could believe she was still alive," said Sarah Wilson, of British charity Christian Aid. It seems rescuers were communicating with her and managing to get water to her through a tube. She was singing when she emerged. Everyone clapped and cheered," she added.
Ms Zizi, said to be 69 or 70, was rescued by Mexican firefighters at about 3:30 pm local time, two-hours short of a full week after a 7.0-magnitude quake hit Haiti. Her rescue gave hope to hundreds of rescue workers still digging for survivors in the ruins of the capital, where the stench of crushed and decomposing corpses filled the air.