The roads and docks of Sesuit Neck are a bit lonelier today.
 
Dennis P. Monahan of East Dennis, MA passed away on Saturday, August 15, 2026, at the age of 66.  Known affectionately as “Denno”, he was born to William and Mary Monahan in Braintree, MA on March 4, 1960.
 
Dennis was a fixture of Sesuit Neck and the Mid-Cape community, working at the Hyannis Marina for nearly 40 years.  Early on he was a certified commercial diver working all over the northeast.  Dennis was a kind soul with a trademark laugh and smile. Most Notably Dennis was a fighter.  After beating cancer several times, he completed seven Pan-Mass Challenge rides, multiple Boston Marathons and Falmouth Road Races.  He was an enthusiastic Red Sox, Bruins and Patriots fan.
 
Dennis leaves behind a large loving family, including his siblings; Theresa, Kathleen, William and Andrea and their spouses as well as; dozens of nieces, nephews, his beloved dog, Huck, and his Hyannis Marina extended family.
 
All family and friends are invited to a celebration of life to be announced at a later date. In lieu of flowers please donate to the Pan-Mass Challenge in Dennis’ memory.

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