The Ukraine.
Hungary, Slovakia and Poland are to the west of Ukraine.
Hungary, Slovakia and Poland are to the west of Ukraine.
Poland is the country you are looking for.
To the West of the Republic of Moldova is Romania.
Romania
The small country located west-southwest of Ukraine is Moldova. It is bordered by Ukraine to the north, east, and south, and to the west, it shares a border with Romania. This landlocked nation is known for its diverse culture and wine production.
To the west of Ukraine is Poland. It shares a border with Ukraine that stretches approximately 535 kilometers (332 miles). Other countries to the west of Ukraine include Slovakia and Hungary, but Poland is the most prominent western neighbor.
Russia
There are two countries directly east of Poland, The Ukraine and Belarus.
Romania.
The only country bordering Moldova (apart form Ukraine) is Romania. However, no country would satisfy the directions of your question.