The 29-year-old actress adopted the tennis ace's last name professionally, going by Kaley Cuoco-Sweeting, following their 2013 wedding but has now made a clean break after filing for divorce last month, reported Us magazine.
Cuoco appeared to show off her newly reclaimed maiden name by snapping a photo of her place setting at an event.
The 29-year-old beauty snapped a photo of the dinner table setting - which refers to her as Kaley Cuoco - on Instagram and wrote: "And my weekend starts right now."
The sitcom star and husband Ryan, 28, called it quits on their marriage on September 25 after just 21 months of marriage.