Phoebe Waller-Bridge's thriller debuted its second season this year, attracting over 40 million requests on BBC’s online platform.
The show earned numerous award recognition in 2019, and it has now topped iPlayer's list of its biggest programmes of the year by a considerable distance.
The Golden Globe-nominated spy thriller's cat-and-mouse tale saw MI6 operative Eve explore her darker side but ultimately decided against joining Villanelle, prompting Villanelle to leave her for dead.
The show's first season has also continued to prove incredibly popular - despite debuting in 2018 - and has come in at fifth place on the most requested list for 2019 with 22.3 million requests.
Falling into third place of the biggest show of the year is season five of Peaky Blinders which scored 26.6million requests.
Strictly Come Dancing’s 17th series, which saw champion Kelvin Fletcher and professional dancer Oti Mabuse take home the glitterball trophy last weekend, came fourth with 23.9 million requests.
The dance competition joined other long-running show such as The Apprentice and Silent Witness in remaining strong performers this year.
TV creator Waller-Bridge found further success with series two of Fleabag coming sixth with 20.3 million downloads.
The most watched live show on iPlayer was the men’s tennis final at Wimbledon with 1.6million streams, followed by rapper Stormzy’s set at Glastonbury.
The top 10 seasons on BBC iPlayer for 2019:
1. Killing Eve (season two): 40.4 million
2. Line of Duty (season five): 27.4 million
3. Peaky Blinders (season five): 26.6 million
4. Strictly Come Dancing (season 17): 23.9 million
5. Killing Eve (season one): 22.3 million
6. Fleabag (season two): 20.3 million
7. The Apprentice (season 15): 19.9 million
8. The Capture (season one): 19.2 million
9. MasterChef (season 15): 19 million
10. Silent Witness (season 22): 18.1 million
Charlotte Moore, director of content at the BBC, said: "It’s been a huge year for BBC iPlayer – as well as record-breaking figures, it’s become an entertainment destination in its own right.
"and with approval for new programmes to be available for a minimum of 12 months, this will deliver real value for licence fee payers.
"In 2020 we will go even further to make it the best watch ever from binge-worthy series to the biggest live TV moments.”
*Killing Eve season 3 will air in 2020.
Do you have a story to sell? Get in touch with us at [email protected] or call us direct 0207 29 33033