Kelsey's husband, The Wanted star Tom, died of a rare type of brain tumour in March and the ITVBe series, Kelsey Parker: Life After Tom, will explore how she is rebuilding her life with their two young children.
In the six-part series, she will take an unflinching look at the reality of bereavement, confronting death with compassion, empathy and humour.
She and her two children will begin to mark life's milestones without Tom, and Kelsey will try out alternative approaches such as death cafes and grief yoga to see if they can help.
Kelsey will also meet famous people sharing their own experiences of losing loved ones, other young widows and bereavement experts.
The documentary team making the series are known for their sensitive treatment of Garraway's family life, having shown the realities of her husband Derek Draper's battle to recover from COVID and the relentless caring responsibilities she now faces.
Amanda Stavri, ITV’s commissioning editor for reality, said: "Continuing our commitment to bring viewers real-life stories, we are privileged to have Kelsey bravely share her experience after the passing of her husband, Tom. Kelsey has allowed cameras into her home to follow her very own personal journey with grief, in the hope it helps others.”
ITVBe has also announced another new series - Giovanna Fletcher: Made In Italy.
The I'm A Celebrity...Get Me Out Of Here! winner and author will get back to her Italian roots and retrace her steps through summers spent with family in southern Italy.
Along for the ride are her brother, Towie star Mario Falcone; their sister Giorgina; and dad Big Mario.
They'll show off Italy's beautiful scenery, including the Amalfi coast, as well as the delicious food she remembers from childhood visits - but this time with plenty of accompanying wine and limoncello.
Watch: Kelsey Parker on Tom's legacy