An individual who contacted the authorities almost 8,000 times contributed to a tenfold increase in complaints about aircraft using Dublin Airport last year.
Figures published by Dublin Airport show a total 15,160 complaints about noise were filed last year - an average of 42 per day. It compared to just 1,453 in all of 2018.
However, they also reveal that two individuals accounted for almost three-quarters of all complaints logged by DAA, the operator of Dublin Airport, during 2019.
One person from Ongar made a total of 7,786 complaints - a daily average of 21 - including 4,554 in July alone when he lodged an average of 147 complaints each day.
Another individual filed 3,435 noise complaints.
DAA said the large increase in complaints last year was skewed by the multiple complaints made by a number of individuals.
The airport spokesperson said DAA had engaged directly with the two individuals who had made numerous complaints.
"Aircraft noise is subjective and is personal to each individual," the spokesperson said.
He pointed out that the number of different individuals who made a complaint during 2019 declined by 3pc to 284 from 293 the previous year.
The biggest number of complainants - disregarding the two individuals - came from Swords (37), followed by Portmarnock (27), Hollystown (25), St Margaret's (20) and Tyrrelstown (13).
The spokesperson added: "The level of aircraft noise is dependent on the type of aircraft and the number of flights.
"While the number of flight movements at Dublin has increased in recent years, the advent of newer, quieter aircraft has brought about substantial reductions in aircraft noise."
He pointed out that the new Airbus A320Neo aircraft, introduced by Aer Lingus last year, generates 50pc less noise than the previous model of the same plane.
According to DAA, more than 95pc of the aircraft using Dublin Airport since 2015 have been the quietest type of aircraft, compared to 83pc in 2008.
The DAA spokesperson said the reduction of aircraft noise on neighbouring communities was the joint responsibility of Dublin Airport, the Irish Aviation Authority, and airlines.
"DAA works closely with all those stakeholders to minimise aircraft noise at the airport," the spokesperson said.
Figures show that 88pc of complaints last year related to aircraft departures from the main runway taking off in a westerly direction.
The spokesperson said DAA was acutely aware of the concerns of local residents in relation to noise and engaged with them on an ongoing basis.
However, he added: "A balance has to be achieved between those concerns and the needs of the Irish economy."
Official figures show that 99.2pc of commercial aircraft using Dublin Airport last year kept to the correct flight path on approach and take-off.
Under a noise management plan, most aircraft taking off from Dublin Airport's main runway must maintain a straight course for five nautical miles before commencing a turn, unless otherwise permitted by air traffic controllers.
DAA operates a €1m noise and flight track monitoring system to ensure minimum disruption to local communities which includes eight fixed noise monitoring terminals around north Dublin and one mobile monitor.
It said all aircraft operating at Dublin Airport conform to current standards regulated by the International Civil Aviation Organisation.
"As older aircraft are phased out in the short term, this situation will continue to improve," DAA said.