Äripäev (English: Business Day) is an Estonian financial newspaper in tabloid format. It was founded in 1989 by Dagens Industri, a leading Swedish financial newspaper. The first issue of Äripäev was published on 9 October 1989. Until May 1992 Äripäev was published once a week, until February 1996 three times a week. Since 1996 Äripäev has been published five times a week.
The newspaper belongs to AS Äripäev, which is owned by the Swedish family-owned media group Bonnier.