Arantxa Rus (Dutch pronunciation: [aʀɑntʃa ʀœs]) (born 13 December 1990) is a Dutch tennis player. In 2008 she won the Australian Open for juniors, defeating Jessica Moore from Australia. With this win she went from 35th to 2nd place on the junior rankings, ultimately becoming the world junior No. 1 player.
Rus's biggest successes to date are a second round shocker over World No. 2 Kim Clijsters at the 2011 French Open, saving two match points in the second set, reaching the 4th round at the 2012 French Open, and defeating World No. 5 Samantha Stosur in the 2012 Wimbledon Championships.
At age 14 Arantxa Rus played her first ITF Pro tournament at Alkmaar. She lost in the second round to Julie Coin.
She played 2 more ITF tournaments at Heerhugowaard and Vlaardingen, reaching the semi finals at the latter.
Rus continued playing ITF tournaments and winning her first at Vlaardingen and second at Alphen aan de Rijn. In San Luis Potosí she reached the finals, but lost in 3 sets.