The 35-year-old Williams and 33-year-old Ohanian have been dating since 2015, according to E! News and have kept their relationship quiet, except for an occasional Instagram post. In the past, Williams had been romantically linked to Patrick Mouratoglou and rappers Drake and Common, People magazine reported.
No date has been announced.
Williams was the runner-up at last year’s Australian Open and won the women’s singles title for the sixth time in 2015. She is the all-time women’s champion during tennis’ Open era; only Margaret Court has won the event more times, taking the title 11 times and four times since the Open era began in the late 1960s.
Ohanian co-founded Reddit, the user-generated news website, in 2005 with college roommate Steve Huffman.