G
gam197
Guest
These seem to be the shortest which are not that many consistering how many Saints there are.
- St. Peter of Verona, martyred by heretical Cathars, less than 1 year after his death (canonized 1253)
- St. Pope John Paul II, 9 years after his death (canonized 2014)
- St. Francis de Paola, friar and founder of Order of Minims, 12 years after his death (canonized 1519)
- St. Maria de la Purisima de la Cruz, Spanish superior of an order that helps the poor, 17 years after her death (canonize 2015)
- St. Mother Teresa of Calcutta, 19 years after her death (canonized 2015)
Pope John Paul II did canonize a great many Saints but I do not think that is an issue.