This isn't the first time Hugh has paid tribute to their late father. In June, the Packed To The Rafters star commemorated Father's Day with a bittersweet Instagram post.
"Happy Fathers Day to my best friend and my dad. I miss you, naturally, no more yesterday, than I do today or I will tomorrow," the 36-year-old wrote alongside a photo with the cherished man himself.
"Lucky to have known you, not as lucky to be so far away from the family, alone again."
Hugh's father, Adelaide swing singer Denis Sheridan, passed in May this year at age 76 after a long battle with terminal cancer.
The sad news was first revealed by Denis’ cousin Neville Quist who took to Facebook to share a touching tribute.
“Denis Sheridan my legendary cousin has exited the stage for the very last time,” Neville wrote.
“The King of Swing and former Lord Mayor of Unley who opened for Frank Sinatra at Sanctuary Cove has sadly passed away yesterday (Monday) surrounded by his beautiful loving family.”
WATCH: Hugh Sheridan pays tribute to late father with heartfelt post (Article continues after video)
Just days previously, Hugh spoke to The West Australian about their father’s health battle as they returned home to be by their dad's side.
“He’s gone into palliative care with cancer," the 36-year-old said.
“It’s been hard for all of us. We [Hugh and his fiancé Kurt Roberts] were planning to get married on New Year’s Eve, but I want Dad to be there, so we’re not sure.”
Hugh also revealed that it was their dad’s terminal illness that prompted them to pop the question to Kurt, as they wanted to savour the happy moments in life.