缩时摄影（英语：Time-lapse photography），亦称为间隔摄影、旷时摄影、延时摄影，是一种将画面拍摄频率设置在远低于一般观看连续画面所需频率的摄影技术。

当在正常速度下播放时，便会感觉到时间经过得较快速，而产生一种流逝感。举例而言，对一个变动中的景象以每秒一张的速度进行连续拍摄，之后以每秒30张的速度播放，那么便会呈现出加速30倍的视觉效果。

缩时摄影可被视为与高速摄影或慢动作摄影相对的摄影技术。针对人眼所能捕捉的微妙过程，例如太阳的移动、空中的繁星等等，透过缩时摄影能够清楚、完整地呈现。缩时摄影可说是电影艺术技巧中减速摄影的极致版本，有时会与停格摄影动画有所混淆。

Time-lapse photography is a technique whereby the frequency at which film frames are captured (the frame rate) is much lower than that used to view the sequence. When played at normal speed, time appears to be moving faster and thus lapsing. For example, an image of a scene may be captured once every second, then played back at 30 frames per second; the result is an apparent 30 times speed increase. Time-lapse photography can be considered the opposite of high speed photography or slow motion.