Has Slovakia ever won the World Cup?

No — Slovakia have not won the World Cup in a completed edition in the covered data.

How many times has Slovakia appeared at the World Cup?

Slovakia have appeared at 1 World Cup edition in the covered data, first in 2010.

Slovakia have scored 5 World Cup goals and conceded 7 across 4 matches in the covered data.

Slovakia's best World Cup result — the furthest they have gone — is the round of 16 (2010).

Slovakia last played at the 2010 World Cup.

Nation · World Cup

In the World Cup since 2010

Four World Cup matches across one appearance.

Played

Won

Goals scored

◧

Biggest win: Slovakia 3–2 Italy (2010).

Slovakia have played 4 World Cup matches across 1 edition in the covered data: 1 won, 1 drawn, 2 lost, with 5 goals scored and 7 conceded.

Has Slovakia ever won the World Cup?: No — Slovakia have not won the World Cup in a completed edition in the covered data.
How many times has Slovakia appeared at the World Cup?: Slovakia have appeared at 1 World Cup edition in the covered data, first in 2010.
How many goals has Slovakia scored in World Cups?: Slovakia have scored 5 World Cup goals and conceded 7 across 4 matches in the covered data.
What is Slovakia's best World Cup result?: Slovakia's best World Cup result — the furthest they have gone — is the round of 16 (2010).
When did Slovakia last play in a World Cup?: Slovakia last played at the 2010 World Cup.

Played	Won	Drawn	Lost	Goals
4	1	1	2	5–7

No top-three World Cup finish in a completed edition.

Result	Edition	Round
Slovakia 3–2 Italy	2010	Group

Source: 2010 World Cup match record, via openfootball (public-domain data) — source

✓ Every fact computed from public match records — openfootball (public-domain data). Not written by anyone.