Police arrested 85 people and seized drugs worth more than £400,000 as part of an operation against illegal drugs over a 14-day period.
The huge haul was found during a police operation targeting 'street level drug dealing' during the first two weeks of December.
Drugs seized during 'Operation Season’s Greetings' included heroin, cannabis, cocaine and prescription medication.
During the operation police made 163 seizures of drugs worth £429,000 and arrested 85 people, they said on Thursday.
Chief Superintendent Jonathan Roberts added: “We have made communities in Northern Ireland safer by removing this substantial amount of drugs from circulation on our streets.
“The figures do, however, make stark reading and every seizure and arrest is representative of the devastation that drug misuse can have on a person’s life and the lives of their families and friends."
He added: “While we have been successful over the last number of years in increasing the number of drugs seizures and arrests, it is clear that no one agency alone can tackle this complex and pervasive issue.
"It is vital that we work together with partner agencies to find long lasting solutions to tackle drug abuse.
“Local communities also have their part to play and information about what is happening in your neighbourhood is instrumental in helping us to target our resources and identify offenders.
“We will continue to proactively target illegal drug activity and bring offenders before the courts to make our communities safer."
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