Elena Rybakina put on a brilliant performance to defeat favourite Aryna Sabalenka 64, 46, 64 and lift her first Australian Open trophy.
The French Open said it would also honour its 2000 women's champion Mary Pierce as well as fellow local favourite Richard Gasquet, who will retire after the tournament this year.
Krejcikova became the first player to win both the women's singles and doubles title in Paris since Mary Pierce completed the feat in 2000.
India's doubles tennis ace Mahesh Bhupathi on Sunday said 2013 will be his last year on tour as he has retirement in mind.
The victory helped the Russian secure the eighth and final berth in the WTA's Tour Championships.
List of US Open women's singles champions, since 1912.
India's doubles ace is uncertain whether he and Mary Pierce, with whom he won the Wimbledon mixed doubles, will team up at the US Open.
Top-seed Amelie Mauresmo overpowered compatriot Mary Pierce 6-1, 7-6.
In another match in the WTA Championships, an exhausted Maria Sharapova was beaten by Nadia Petrova.
Hot favourites Russia will take on an under-strength France in the Fed Cup final after both nations completed 5-0 wins in the semis.
Second seed Maria Sharapova crushed defending champion Mary Pierce 6-2 6-3, setting up a last four clash with Patty Schnyder of Switzerland, who beat number four Elena Dementieva 6-4 6-3.
The Russian will meet Patty Schnyder, who beat number four Elena Dementieva, in the semi-finals of the Acura Classic.
Top seed Kim Clijsters edged past Jelena Jankovic, while Maria Sharapova beat fellow Russian Vera Zvonareva at the Acura Classic.
The Indian ace beat Katarina Srebotnik 6-3, 7-6 to set up a third round clash with Elena Dementieva.
With first round exit, the Indian challenge in the WTA singles event came to an end.
Amelie Mauresmo saved a match point to beat Tatiana Golovin and set up a first all-French Paris Open final.
The Indo-Swiss pair beat Yeu-Tzuoo Wang and Na Li 6-2, 6-2 in the first round at Australian Open
Amelie Mauresmo won the biggest title of her career on Sunday.
Defending champion Maria Sharapova was forced to drop a set before beating Patty Schnyder in the season-ending WTA Championships.
Mary Pierce beat unseeded Italian Francesca Schiavone 6-4, 6-3 in the Kremlin Cup final to win her second title in Moscow
They beat Katarina Srebotnik of Slovakia and Nenad Zimonjic of Serbia 6-4, 6-2 in the final at the US Open.
The defending champion was made to sweat by Slovenia's Katarina Srebotnik in the third round of the women's singles at Wimbledon.
A super-charged Justine Henin-Hardenne crushed Mary Pierce 6-1 6-1 to win the French Open crown for the second time on Saturday.