The FT scooped the award for being "uncompromising in its core mission" to give readers a service that is "poised, informed, classy and intelligent", all while increasing its circulation and raising its price.
Its six-month average daily circulation is up 0.69% year on year, according to the latest ABC figures, despite its cover price increasing from £1 to £1.50 over recent months.
News International's The Sun was another big victor last night, winning four awards.
The paper landed ±±¾©Èü³µpk10 of the Year and The Cudlipp Award for its "Help for heroes" campaign, which raises funds for the forces' rehab centre in Surrey.
Defence editor Tom Newton-Dunn won two prizes, Reporter of the Year and Scoop of the Year, for his story on Lance Corporal Matty Hull, who was killed by friendly fire from a US plane in Iraq, and the subsequent cover-up.