Aoibhinn Ní Shúilleabháin (pronounced [ˈiːvʲən̠ʲ n̠ʲiː ˈhuːl̠ʲəwaːnʲ]; born 25 October 1983) is an Irish academic, teacher, broadcaster and high-profile science communicator.

[1] She also won the Rose of Tralee contest in 2005 and toured internationally as the lead singer of an Irish traditional music band.

[2][3] Her parents were teachers,[4] her father, Art, from County Galway, being the principal of Carnacon National School, and her mother, Maire, vice-principal of a Gaelscoil in Castlebar.

[6] She entered University College Dublin (UCD) with an Entrance Scholarship for high marks in the Leaving Certificate.

[7] Ní Shúilleabháin obtained funding for a four-year masters and doctorate in Biological Mathematics[8] at University College London but having commenced that, she switched plan to secondary teacher education.

[9] She left teaching to pursue a Ph.D in mathematics education, including improving approaches for science and maths teachers, in 2011, winning an Ussher Fellowship to fund multi-year doctoral studies.

[9] She completed the doctorate with the School of Education of Trinity College Dublin in 2014, with her thesis, "Developing mathematics teachers' pedagogical content knowledge through lesson study : a multiple case study at a time of curriculum change", published in 2015; she graduated that year.

[9] Nominated by colleagues from across the university, she won a 2020 UCD "Values in Action" award for her role as a socially engaged academic, communicator and leader.

[9] In 2020 she received a Maths Week Ireland Award for outstanding work in raising public awareness of mathematics.

[23] In April 2022 Ní Shúilleabháin was nominated by the then Taoiseach, Mícheál Martin to chair the national Citizens' Assembly on Biodiversity Loss.

[32][33] She also hosted regularly on Dublin's Irish language radio station, Raidió na Life,[1] and stood in for Síle Seoige on Newstalk in 2011, interviewing Lee Child and Pixie Lott, for example.

[6] In 2007 and 2008, she toured the United States, Japan, and Europe as the lead singer of Ragús, a traditional Irish music band.

[9] Ní Shúilleabháin is one of four co-compilers of a 2012 science "short facts" book, A Neutron Walks Into a Bar, published in aid of charity.

[52] In September 2020, Ní Shúilleabháin spoke about her experience of being harassed and stalked, even beyond Dublin, over a two-year period, from 2015 to 2017, by Hans-Benjamin Braun, a fellow professor at UCD.

She eventually received a formal apology from the acting president of UCD in 2022; the perpetrator of the harassment had meantime left the university.