The novelist and playwright passed away peacefully in hospital on Monday (July 30) with her husband, the children's author Gordon Snell, by her side.
Born in Dalkey on May 28, 1940, Binchy studied at University College Dublin and worked both as a teacher and a journalist before she became a best-selling writer.
She spoke fondly of her early years on her own website, writing: "I was happy and confident. That was quite simply because I had a mother and a father at home who thought I was wonderful. They thought all their geese were swans.
"It was a gift greater than beauty or riches, the feeling that you were as fine as anyone else."
Binchy began writing fiction while working at the London bureau of The Irish Times, and her debut novel Light a Penny Candle was published in 1982.
Numerous books by Binchy, including Circle of Friends, were made into films and TV series. In total, she wrote 15 novels including Tara Road, Echoes and the award-winning Scarlet Feather.
She also penned several novellas, plays and collections of short stories. Binchy's TV screenplay Deeply Regretted By won a Jacob's Award - honouring outstanding achievement in Irish TV and radio - in 1978.
More recently, she and Snell made a guest appearance playing themselves in RTÉ soap Fair City.
Binchy is survived by Snell and two siblings, her brother Professor William Binchy, and a sister, Joan.