The Second Language University Speech Intelligibility corpus was created by Northern Arizona University, The Pennsylvania State University, and University of Texas at Dallas. It consists of 10.5 hours of speech by 66 international faculty and university students (34 female, 32 male) from 15 different language backgrounds at 10 universities in North America. Data were collected in 2021 and 2022 during which 127 speech events were recorded by speakers at home and in classrooms. The recordings are all monologic and contain speakers’ presentations, descriptions, reflections, and microteaching tasks. Some include a practice recording and /or a final, in-class recording. Speakers were recruited from courses at Intensive English Programs (IEPs) and oral skills courses for international graduate students seeking to become International Teaching Assistants (ITAs).