The mother and daughter flew to the Austrian city earlier this week for the prestigious ball, held at Vienna's State Opera House, and marked the special occasion by dressing up in their finest outfits.
While momager Kris, 58, opted for an all-black gown covered with sequins, Kim dared to bare in a frock designed by Ralph Rucci, which featured sheer black detail around the bust.
The bottom of the dress was a gorgeous gold colour and the way it fell flattered the 33-year-old's famous curves perfectly.
Kim left her brunette locks super straight and slicked her parting over to the side, so that her smoky eye make-up made even more of an impact.
She and Kris were joined at the Opera Ball by billionaire host Richard Lugner, who had invited them both as his guests to Vienna for the annual celebration.
However, it has been widely reported that Kim eventually left the Ball early and declined the opportunity to dance with Richard during the evening.
The 81-year-old had announced at a press conference yesterday (27 February) that the Kardashian star would join him on the dance floor, but Kim later insisted that she would rather watch and let her mum have the dance instead.
No doubt Kim was missing her fiancé Kanye West last night, as he has been busy making appearances at Paris Fashion Week.
The superstar couple have been mostly inseparable following the birth of daughter North last June and often travel together.
Earlier this week, Kim and Kanye were seen out and about in New York with North, but they were soon forced to part ways for their respective commitments in Europe.
KimYe are planning to get married in Paris later this year, with rapper Kanye joking (or not?) that he wants fighter jets at the proceedings.
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