This book constitutes the refereed proceedings of the 30th International Symposium on Model Checking Software, SPIN 2024, held in Luxembourg City, Luxembourg, during April 10-11, 2024. The 9 full papers, 3 short papers and 2 invited papers included in this book were carefully reviewed and selected from 23 submissions. They are organized in topical sections as follows: model checking; anniversary; automated reasoning; and verification tools.