[4] A week later, she made her professional debut at the $50k Toronto Challenger where she was defeated in the qualifying second round in singles and the quarterfinals in doubles.

[5] In December 2013, she won the Orange Bowl in the U16 category with a three-set win over Alexis Nelson in the final.

[10] In January at the junior Australian Open, her first Grand Slam, Robillard-Millette reached the quarterfinals in singles where she was defeated by eventual winner Tereza Mihalíková.

[20] In April, she made her Fed Cup debut playing doubles with Sharon Fichman in the World Group II Play-offs.

[23] In July at the $25k Winnipeg Challenger, she reached the first professional doubles final of her career with compatriot Marie-Alexandre Leduc.

[24] Robillard-Millette captured in August her first professional doubles title with fellow Canadian Bianca Andreescu at the Challenger de Gatineau.

[28] In February, she was selected to represent Canada at the Fed Cup Americas Zone Group I with Bianca Andreescu, Katherine Sebov and Carol Zhao.

[29] In March, she reached final of the doubles draw at a $15k event in Heraklion with fellow Canadian Carol Zhao.

[31] In September, she qualified for her first WTA tournament at the Coupe Banque Nationale beating Camilla Rosatello and Conny Perrin, respectively, both top 250 players.