Ernesto Valverde's side were crowned champions after a 4-2 win at Deportivo La Coruna in late April and kept their unbeaten run going with a 2-2 draw in the Clasico at home to Real Madrid last Sunday.
The Catalans then thrashed Villarreal 5-1 at Camp Nou on Wednesday night and have 90 points – 12 more than second-placed Atletico and 15 more than Real Madrid – with two matches remaining.
Barca are at home to Real Sociedad on the final day of the season, but here Goal takes a look at everything you need to know ahead of their match against Levante at the Ciutat de Valencia on Sunday...
Sergi Samper is sidelined with a long-term injury, while Samuel Umtiti is doubtful with a minor knee problem.
Sergi Roberto was hit with a four-match ban for lashing out at Marcelo in the Clasico and will therefore not appear again in La Liga this season.
Barcelona potential starting line-up
With Sergi Roberto suspended, Nelson Semedo will start at right-back for Barcelona at Levante, while Thomas Vermaelen looks set to feature with Umtiti carrying a minor injury.
In midfield, Ousmane Dembele looks likely to be rewarded for his superb showing against Villarreal with a starting spot in this match, with Andres Iniesta set to start on the bench.
Lionel Messi and Luis Suarez should both start in attack.
Levante team news
Levante enjoyed a positive start to their campaign in La Liga, but a mid-season slump followed, leaving the Valencia-based side in danger of going back down to Spain's Segunda Division.
However, their recent run has been extremely impressive and five wins from their last six games has lifted Levante up to 14th place in the table ahead of their match at home to Barcelona this weekend.
Left-back Tono and midfielder Chieck Doukoure are both sidelined for Sunday's game.
TV channel & kick-off time
Levante versus Barcelona kicks off at 8:45pm local time on Sunday and will be broadcast live in the UK (United Kingdom) on Sky Sports Football from 7:40pm BST.
In the United States, the game can be watched live on television on beIN SPORTS and kicks off at 2:45pm ET.
Best Opta match facts
Barcelona have only lost one of their 23 games against Levante in La Liga, a 5-1 defeat in Valencia back in October 1964.
The Catalans have won four of their last five trips to the Ciutat de Valencia in La Liga, keeping a clean sheet in three of those games
Lionel Messi has been involved in 27 goals in his last 13 league appearances against Levante (16 goals and 11 assists).
Andres Iniesta has provided three assists in a single league game twice, the last time at the Ciutat de Valencia in November 2012.
Luis Suarez has scored in each of his three league appearances versus Levante (three goals).