Yulia Tymoshenko said Zelenskiy's victory is a "chance for Ukraine":
German Chancellor Angela Merkel has congratulated Zelenskiy on his victory:
The graphic of voting totals throughout Ukraine shows how dominant he was (Poroshenko only doing well in the far west):
https://elections.dekoder.org/ukraine/en
Pro-Russian politicians in Ukraine, in this case Crimea de facto chief Aksenov, continue to stress how the election is a rejection of the what replaced Yanukovych:
This graphic shows that Zelenskiy's margin of victory was higher than in any other previous Ukrainian presidential election:
Belarusian President Alyaksandr Lukashenka has also congratulated Zelenskiy:
EU President Juncker congratulates Zelenskiy and Ukrainians: