Arthur Mark Leto

Mark Leto passed away on Thursday, February 19, 2026, at the age of 67. He was born April 25, 1958, in Baton Rouge, Louisiana to Art and Rosalie Leto. He was raised in his younger years in Virginia Beach and Miami with his family returning to Louisiana just six months prior to the end of his senior year. He graduated from Bonnabel High School and received his bachelor’s degree from the University of New Orleans. Mark was a very successful sales representative working in the office supply industry. While his dedication to his job afforded him many clients, it also resulted in countless friends.

Mark had many passions throughout his life including traveling, concerts, camping, and enjoying LSU sports. In his final months of his life he resided in Pass Christian, Mississippi and enjoyed the water and the beauty of the Gulf Coast. He was a cat lover his whole life and loved spending time with his cat, Winston. Mark had a heart of gold and would do anything for his friends and family. He will be remembered for his sense of humor, quick wit, and passion for life. He will be dearly missed by all who knew him.

He is preceded in death by his parents. Mark is survived by his devoted son, Andrew Leto and his son’s fiancée Erika Carrizales; his sisters Fran Budzinski and her husband Tom, and Jan Zambito and her husband Joe. He is also survived by the mother of his son, Roslyn Gouaux; his niece Alexa Zambito Moreno; and his nephews Joseph Bourque, Christopher Hodges, Ryan Hodges, and Taylor Zambito.

The family would like to provide a special thank you to his close lifelong friends, Keith Himmel and Don Landry for their support during his final days; as well as the doctors and staff at Ochsner MD Anderson Cancer Center and St. Tammany Parish Hospital.

Relatives and friends are invited to attend the Memorial Service at 10:30 a.m. on Tuesday, February 24, 2026, at Resthaven Funeral Home, 11817 Jefferson Highway in Baton Rouge. A Memorial Visitation will be held at the funeral home beginning at 9:00 a.m.

In lieu of flowers and for those so desiring, donations in honor of Mark may be made to the Humane Society of South Mississippi.

Family and friends may sign the online guestbook or leave a personal note to the family at www.resthavenbatonrouge.com