Karl M. Guidotti, 80, of Niagara Falls, NY, passed away on May 5, 2026 in Millard Fillmore Suburban Hospital. Born in Niagara Falls, New York, he was the son of the late Hugo and Anne “Babe” (Cirrito) Guidotti; He was predeceased by the love of his life, Mary C. (Hennegan) Guidotti; cherished father of Teresa (Paul) Biondi and Tammy Lynn (Scot) Northcutt; Loving grandfather of Chelsea (Gary) Morrison, Dom Northcutt, Staci (Josh) Cruz and Stephen Biondi; Great- grandfather of Melia Morrison, Journee Morrison and Grayson Morrison; Great-great grandfather to a baby girl to be born later this year. Karl is also survived by a brother, Gary (Diane) Guidotti, as well as many nieces, nephews, cousins, and friends.

In accordance with Karl’s wishes, there will be no prior visitation. Memorial offerings may be made to St. Jude Children’s Hospital or Roswell Park Cancer Institute. Arrangements by M.J. Colucci & Son Niagara Funeral Chapel. Visit mjcoluccifuneralchapel.com for online condolences.