Kristoffer Ajer
Brentford

Kristoffer Ajer

Kristoffer Ajer of Brentford was born in Rælingen, Norway on 17 April 1998 (age 27).

Kristoffer Ajer
Kristoffer Ajer · Photo: Vagelis Georgariou

Born 17th April 1998, the Norwegian central defender Kristoffer Ajer currently protects the net for Brentford, wearing the number 20 jersey. This colossal presence stands at 6ft 5in (1.96m) and weighs in at 13st 3lb (84kg). Ajer's talent isn't just recognised at the club level, he has also donned the jersey for his national team, Norway.

Today, Ajer is valued around the £15m mark, according to Transfermarkt. His contract at Brentford is settled until 30th June 2028, giving him just over three more fruitful years at the club.

Ajer's humble football journey began in Norway's OBOS-ligaen with Start in January 2014. After a debut season that saw him make 13 appearances and score a goal, he continued to shine in the subsequent seasons, culminating in a move to Scotland's Premiership club, Celtic, in July 2016 for around £750k.

His time at Celtic Football Club is one packed full of memories and appearances. During the 2017-2018 season, Ajer crafted his skill in 24 league matches. In the following 2018-2019 season, he again featured in 28 league matches. Notably, in the 2019-2020 season, Ajer started finding the net, scoring 3 goals in his 28 appearances. Finally, in the 2020-2021 season, he made a grand total of 35 appearances and scored two goals.

In January 2017, Ajer was loaned to Kilmarnock in Scotland's Premiership. He made 16 appearances for the club before returning to Celtic in July 2017, where he continued to impress with consistent league appearances and goals.

Eventually, in July 2021, Ajer bid farewell to Celtic as he transferred to English Premier League's Brentford for a hefty sum of around £14m. Since his move, he's been consistent in his appearances, even scoring a few goals. In the current 2024-2025 season, he's already made 17 appearances and looks set to continue his impressive form into the future.

Ajer's talent extends beyond just the club level. He has also starred in the League Cup 2024-2025 for Brentford, World Cup Qualifiers Europe 2024-2026 for Norway, Euro Qualifiers 2022-2024 for Norway, and Nations League 2024-2025 for Norway, demonstrating his considerable international football prowess.

This player profile is regularly updated with new stats and analysis throughout the season. Last updated 5 April 2025. Send feedback

Kristoffer Ajer stats

Check out all of the statistics about Kristoffer Ajer.

Central Defender
Primary Position
Defender
Position
Kristoffer Ajer
CD
1.96m (6ft 5in)
Height
20
Squad Number
84kg (13st 3lb)
Weight
17 April 1998 (age 27)
Date of Birth
Rælingen
Birthplace
Norway 🇳🇴
Country of Birth
Brentford
Team
Norway 🇳🇴
National Team
£15m (via Transfermarkt)
Market Value
30 June 2028 (3y 3m)
Contract Expires

Season stats

Team
Brentford
Brentford
Premier League 2024 - 2025
Games
20
Starting
17
Substitute
3
Unused
13
Utilisation
61%
Goals
-
Yellows
4
Reds
-
Team
Brentford
Brentford
League Cup 2024 - 2025
Games
1
Starting
1
Substitute
-
Unused
3
Utilisation
25%
Goals
-
Yellows
-
Reds
-
Team
Norway 🇳🇴
World Cup Qualifiers Europe 2024 - 2026
Games
2
Starting
2
Substitute
-
Unused
-
Utilisation
100%
Goals
1
Yellows
1
Reds
-
Team
Norway 🇳🇴
Euro Qualifiers 2022 - 2024
Games
4
Starting
3
Substitute
1
Unused
4
Utilisation
50%
Goals
-
Yellows
1
Reds
-
Team
Norway 🇳🇴
Nations League 2024 - 2025
Games
2
Starting
2
Substitute
-
Unused
4
Utilisation
33%
Goals
-
Yellows
-
Reds
-

Career stats

Team
Brentford
Brentford
Season 2024 - 2025
Country
England 🏴󠁧󠁢󠁥󠁮󠁧󠁿
Games
20
Goals
-
Team
Brentford
Brentford
Season 2023 - 2024
Country
England 🏴󠁧󠁢󠁥󠁮󠁧󠁿
Games
28
Goals
2
Team
Brentford
Brentford
Season 2022 - 2023
Country
England 🏴󠁧󠁢󠁥󠁮󠁧󠁿
Games
9
Goals
-
Team
Brentford
Brentford
Season 2021 - 2022
Country
England 🏴󠁧󠁢󠁥󠁮󠁧󠁿
Games
24
Goals
1
Team
Celtic
Celtic
Season 2020 - 2021
Country
Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿
Games
35
Goals
2
Team
Celtic
Celtic
Season 2019 - 2020
Country
Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿
Games
28
Goals
3
Team
Celtic
Celtic
Season 2018 - 2019
Country
Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿
Games
28
Goals
-
Team
Celtic
Celtic
Season 2017 - 2018
Country
Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿
Games
24
Goals
-
Team
Kilmarnock
Kilmarnock
Season 2016 - 2017
Country
Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿
Games
16
Goals
-
Team
Start
Start
Season 2016
Country
Norway 🇳🇴
Games
11
Goals
-
Team
Start
Start
Season 2015
Country
Norway 🇳🇴
Games
28
Goals
8
Team
Start
Start
Season 2014
Country
Norway 🇳🇴
Games
13
Goals
1

Transfers

Team
Brentford
Brentford
21 July 2021
From
Celtic
Celtic
Type
Fee (£14m)
Team
Celtic
Celtic
1 July 2017
From
Kilmarnock
Kilmarnock
Type
Returned from loan
Team
Kilmarnock
Kilmarnock
20 January 2017
From
Celtic
Celtic
Type
Loan
Team
Celtic
Celtic
1 July 2016
From
Start
Start
Type
Fee (£750k)
Team
Start
Start
1 January 2014
Type
Trainee

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