Bertha Laurentia Maria Coleta van Hasselt (24 November 1901 – 17 October 2009) was a Dutch centenarian.
She was the oldest person in the Netherlands for only 4 days between 13 October 2009 and her death on 17 October 2009, at age 107 years 327 days. She inherited the title after the death of 112-year-old Grietje Jansen-Anker of Vlissingen, making her the first oldest living person in the Netherlands born in the 20th century. She was born and lived in Roosendaal until age 98 and moved to a Breda nursing home in 2000. After her death, 107-year-old Wytske van Dijk-Meindertsma became the oldest person in the Netherlands.