"This Is Our Night" is a song by Greek singer Sakis Rouvas, from the album Irthes. It was selected as Greece's entry in the Eurovision Song Contest 2009. The song was released as a digital download along with the other candidate songs from the national final on February 25 and was soon released as a three track CD single and then included on the re-release of Rouvas' 2008 album Irthes which was renamed This Is Our Night.

The song was produced by Dimitris Kontopoulos as one of the three candidates that Rouvas would sing for the Eurovision Song Contest 2009. The lyrics were written by two Greek Australian songwriters: Craig Porteils, who had previously written and produced hits for Cher, Billy Idol, Tevin Campbell, Richie Sambora, Guns N' Roses and Ozzy Osbourne, and Cameron Giles-Webb, who is the president of Gusto Music. It is described as being a "powerful dance song".

The song was performed in Moscow during the second semi-final on May 14, 2009 and was one of the ten performances which qualified for the grand final. In the final on May 16, "This Is Our Night" finished in seventh place with a total of 120 points, receiving maximum 12 points from Albania, Bulgaria, and Cyprus. The song therefore carried on Greece's Eurovision success by finishing within the top-ten for the sixth consecutive year, thus making the country the second most successful entrant of the past decade, despite not having even participated in 2000. The event was watched by 86% of the Greek television audience.

The performance had extremely complex choreography, with BBC News announcing that "Greece's Sakis Rouvas had one of the more ambitious dance routines". Rouvas performed on a rotating podium which transported him from left to right across the stage, was part of his group dance routine with four other performers and, in the end, was responsible for lifting him high into the air. In the same moment, a Greek flag is displayed on the floor, only visible to the television viewers. The final part of the performance was completed by silver fireworks in two separate parts. The official Eurovision website states that, this year, Greece had made "high-tech advancements" in the contest's standards.

Whilst Rouvas was disappointed with his seventh place finish, announcing to Greek media "I am so sorry, I wanted us to win", there was still unanimous support towards the artist himself in the country. "Seventh in Europe, first in our hearts" many journalists reported on Greek television. The media and public pronounced their support for Rouvas, the general consensus being that the artist gave it his best even though this did not translate in enough votes in the contest. All criticism in Greece focused on the selection of the song itself, rather than the artist's performance. Rouvas stated that, overall, it has all been a wonderful experience for him: "some win, some lose, personally, I gave everything I had. But it was a wonderful experience".

Some critics, including those from LGR, suggested the reason why Greece failed to achieve a higher placing was due to a lack of an ethnic-sounding song. He notes the way in which all of Greece's top-three placings, including Rouvas' performance of "Shake It" in 2004, had an ethnic bouzouki sound, as did the 2009 Azerbaijani and Turkish entries which finished in third and fourth place respectively.