Ms Morris, from Cardigan, Ceredigion, was driving her Mazda car along the A487 near Felindre Farchog on Sunday afternoon when it collided with a Volvo.
She died at the scene.
Those travelling in the other car were taken to Withybush Hospital in Haverfordwest with minor injuries.
A 70-year-old woman who died in a two-car crash in Pembrokeshire has been named as Glenys Morris.