Probst is already a member of the IOC's international relations committee, while Blackmun serves on the marketing commission. DeFrantz is chair of the women and sports commission, and Ruggiero heads the coordination commission for the 2016 Winter Youth Games in Lillehammer.
Probst and Zhukov were nominated to the IOC for their roles as national Olympic committee presidents. Six others were put forward as "individual" members and Holm as an athlete.
With Probst and Zhukov, the U.S. and Russia would each have four IOC members. Britain also has four, while Switzerland has the most with five.
Set to join the IOC ranks are two high-profile names from track and field. Holm won the high jump at the 2004 Athens Games. Tergat won the silver medal in the 10,000 meters at the 2000 Sydney Olympics, a year after he won the last of his five successive world cross-country titles. He also won the New York Marathon in 2005.
Separately, four athlete members will be sworn in on Wednesday: shooter Danka Bartekova of Slovakia, rower James Tomkins of Australia, swimmer Kirsty Coventry from Zimbabwe and canoe-kayaker Tony Estranguet of France. They join the IOC after voting among athletes at last year's London Olympics.
Coventry and Estranguet were put forward after former Olympic hammer throw champion Koji Murofushi of Japan and Taiwanese taekwondo fighter Chu Mu-yen were disqualified from the election for breaking campaign rules.
With 13 new members, the IOC membership will grow to 113 in September.