Kristoffer Tonnessen (born 1 October 1997) is a Norwegian football defender who plays for Start.
He made his league debut for Jerv in the 2013 3. divisjon, and took part in successive promotions to the 2016 1. divisjon. At the end of the season, Jerv was only minutes away from yet another promotion, but ultimately lost the decisive playoff match. The next year, Tonnessen made his debut for Norway U21. In the summer of 2019 he went to Start, for whom he made his first-tier debut in June 2020 against Stromsgodset.
Lecce 
Udinese 
Fiorentina 
Monza 
Aston Villa 
Liverpool 
Barcelona 
Real Sociedad 
Baltika 
Spartak Moscow 
Rangers 
Dundee 
Tottenham 
Manchester City 
Real Madrid 
Alaves 
Vorskla Poltava 
Shakhtar Donetsk 
Sevilla 
Cadiz 
Zenit Saint Petersburg 
CSKA Moscow 
Kilmarnock 
Celtic 
Brighton 
Chelsea 
Manchester Utd 
Newcastle 
Nice 
Paris Saint Germain 
Reims 
Marseille 
Atalanta 
Juventus 
Getafe 
Atletico Madrid 
Almeria 
Valencia 
Palermo 
Sampdoria 
Bordeaux 
Pau 
Napoli 
ST Mirren 
Heart Of Midlothian 
1899 Hoffenheim 
Bayern Munich 
Bayer Leverkusen 
FC Augsburg 
Borussia Dortmund 
SV Darmstadt 98 
Eintracht Frankfurt 
RB Leipzig 
VFL Wolfsburg 
FSV Mainz 05