Tonny Brochmann Christiansen (born 11 August 1989) is a Danish footballer who plays as a midfielder.

He has previously played for Horsens, Sogndal, Sandnes Ulf, Jerv, Stabæk and Mjøndalen.

He made his debut for Sogndal in a 1-1 draw against Vålerenga.

[2] He went on to score in his OBOS-ligaen debut when Jerv defeated Ranheim 2-1 at home stadium Levermyr on 3 April 2016.

On the last day of the transfer window Brochmann signed for Mjøndalen.