Happy Death Day
- Blwyddyn: 2017
- Gwlad: United States of America
- Genre: Comedy, Horror, Mystery
- Stiwdio: Vesuvius Productions, Blumhouse Productions, Digital Riot Media, Universal Pictures
- Allweddair: college, murder, time loop, young adult, college student, stabbed to death, appreciative, vibrant
- Cyfarwyddwr: Christopher Landon
- Cast: Jessica Rothe, Israel Broussard, Ruby Modine, Rachel Matthews, Billy Slaughter, Charles Aitken