Articles and reports: 12-001-X202500100002Description: Ivan Fellegi is an expert in statistical science and a public servant who was the Chief Statistician of Canada from 1985 to 2008. This article briefly recounts his early life, long-spanning career and influential research contributions. It includes an interview conducted in February 2017 to mark the 60th year of service of Ivan Fellegi’s career at Statistics Canada. Issue Number: 2025001Author(s): Chen, Edward J.; Lundy, Erin R.Main Product:Survey Methodology