Dominika Cibulková (born May 6, 1989 in Piešťany, Slovakia) is a Slovak professional tennis player. She is currently at her career high ranking of No. 38, a ranking achieved on February 25, 2008. She is also a former World No. 3 at the junior level, achieving that ranking in May 2005.

At the 2007 French Open she qualified and made her Grand Slam main draw debut, reaching the third round. In the second round she upset the No. 32 seed Martina Muller 6-3, 6-2 after beating Tiantian Sun 6-4, 6-4. She eventually lost to Svetlana Kuznetsova. She has also reached the third round in Amelia Island, beating Anabel Medina Garrigues but losing to her countrywoman Daniela Hantuchová and the quarterfinals of the ECM Prague Open, beating Gisela Dulko before falling to Victoria Azarenka.

At the 2008 Qatar Total Open, she reached her first ever Tier I quarterfinal. Her most notable victory was in the third round over former World No. 1 Venus Williams, who she beat 6-3, 6-3. But was defeated in the quarterfinals by Polish teenager Agnieszka Radwanska in three sets 4-6, 7-6, 4-6.

She has played in the Fed Cup for the Slovak Republic three years in a row from 2005 to 2007, holding a 5-9 win-loss record in those ties.