BirGün (One Day) is an Istanbul-based Turkish left-wing daily.

The most important point of the newspaper is that it is not owned by any parent company or conglomerate.

Since its foundation, the newspaper had to face serious pressures from publishing trusts, mainly to affiliated with Doğan Media Group that owns the vast majority of the market.

In order to afford the costs, the newspaper first launched a subscription campaign, then raised its price to 0.75 TL.

BirGün 's sales have tripled since 2013, especially after the Gezi protests, reaching 25,000 copies.