Ukraine is a country of Europe.
At the National Energy Convention, Homer Simpson and Mindy Simmons represent the Springfield Nuclear Power Plant. While there they are met with poor reception, including someone who shouts, "No more Chernobyl!" 
Chief Wiggum told Homer that he has to get his underwear specially made by a village in Ukraine. He then goes on to tell him that they send him a Christmas card every year, and that they call him "daddy round-round." 
The Simpsons' creator Matt Groening's paternal family originated from a Mennonite settlement in Ukraine.
- Episode – "The Last Temptation of Homer" (mentioned)
- Episode – "King-Size Homer" (mentioned)
- Episode – "Any Given Sundance" (mentioned)
- Episode – "Chief of Hearts"
- Episode – "The Falcon and the D'ohman"
- – The Simpsons Movie (mentioned)