This is a list of Ig Nobel Prize winners from 1991 to the present day.
Commenting on the 2006 awards, Marc Abrahams, editor of Annals of Improbable Research and co-sponsor of the awards, said that "[t]he prizes are intended to celebrate the unusual, honor the imaginative, and spur people's interest in science, medicine, and technology".
[2] All prizes are awarded for real achievements, except for three in 1991 and one in 1994, due to an erroneous press release.
[269] The 31st First Annual Ig Nobel Prize ceremony took place on Thursday, 9 September 2021 and was webcast.
[281][282] The 32nd First Annual Ig Nobel Prize ceremony took place on Thursday, 15 September 2022, and was presented in a webcast format.
[297] The 33rd First Annual Ig Nobel Prize ceremony took place on Thursday, 14 September 2023, and was presented in webcast.
[309] The 34th First Annual Ig Nobel Prize ceremony took place on Thursday, 12 September 2024, and was held at the Massachusetts Institute of Technology.