Stage 4

Stage 4 may refer to:


 * Key Stage 4
 * Stage 4 of Everywhere at the End of Time
 * Cambrian Stage 4
 * Stage 4 cancer
 * Stage 4 CKD
 * Dual-Stage 4-Grid
 * Stage 4 of Braak staging
 * Decomposition stage 4
 * Whale fall stage 4
 * 2019–20 Biathlon World Cup – Stage 4
 * 2021 Call of Duty League season stage 4