Robert George Weiss

Robert George (Bob) Weiss, 97, died on Sunday, June 14, 2026, at Northwestern Memorial Hospital, Chicago. The great loves of Bob’s life were his beloved late wife Floretta (Flo) Adler Weiss, with whom he shared a 75-year marriage, his late father Louis Arthur Weiss who died when Bob was 20 years old, sailing, classical music and opera.

Bob is survived by his sons Louis Arthur “Skip” (Kathleen Aharoni) Weiss and Robert Alan (Ofra) Weiss; his daughter-in-law Janis Weiss; grandchildren Benjamin Weiss, Nicholas Weiss, Jacob Weiss, Sarah Weiss, Charlotte Weiss, Loren Weiss, Evan Weiss, Richard Weiss and their spouses; nine great grandchildren, and many nieces and nephews. Bob is preceded in death by his son John David Weiss and his granddaughter Meryl Weiss.

Bob’s greatest passion was his wife, Flo. The two began dating when they were 16 and remained deeply in love and dedicated to one another throughout their lifetimes. Bob and Flo traveled the world together, including in Europe, the Far East, Iran and Afghanistan. They had a special love of the American Southwest and for more than 25 years enjoyed a home in Santa Fe.

In 1945, Bob’s father bought the sailboat "The Little Rock", and a mutual passion for sailing was born, along with a deep bond. Bob continued to sail with family and friends until he was 80, exploring Lake Michigan, the Caribbean, the Florida Keys, and other islands.

Bob’s love of classical music began in 1937 when his second-grade teacher at Pierce Elementary School offered his class tickets to the Chicago Symphony Orchestra. He was smitten at first-concert and later was devoted to opera as well.

Bob was a long-time, committed board member for the Lyric Opera, Santa Fe Opera and Ravinia Festival. He was a trustee of Louis Weiss Memorial Hospital and UChicago Medicine.

Entombment will be at Memorial Park Cemetery on Wednesday, June 17, 2026, at 2 p.m.

In lieu of flowers, donations are invited to UChicago Medicine, Lyric Opera or Santa Fe Opera.