Miriam Sornprommas was first runner-up and Thanatchaphon Boonsang second runner-up.
Paweensuda, 180 centimetres tall, was born and raised in Canada. Her father is Canadian.
She graduated in kinesiology with first-class honours from the University of Calgary.
She moved to Thailand as an adult to pursue a career in modelling and deejaying.
She competed in several other beauty pageants, earning titles in some, prior to this year’s Miss Thailand Universe contest. She was second runner-up in the Miss Universe Thailand 2017 competition.
Paweensuda’s prizes are Bt1.5 million cash, a Volkswagen worth Bt3.8 million and a condominium worth Bt12 million. She will represent Thailand in vying for the Miss Universe title later this year in South Korea.