UEFA has issued a ban that applies to all Ajax fans for their away clash against Chelsea in the Champions League on November 5.
There was crowd trouble during the Dutch side's game against Valencia earlier in the group stages.
Since it is the second such incident to occur in recent seasons, fans will not be allowed to attend the game at Stamford Bridge.
The last time Ajax had such an issue was their Champions League game against Benfica last term.
Ajax also have to pay a 50,000, while they could be hit with another one-match ban on selling tickets to away fans if a further incident occurs in the next 12 months.
