| U Turn | 2016 | 4 |
| U-Turn | 2018 | 4 |
| U-Turn | 2020 | 2 |
| Ubaldo Terzani Horror Show | 2010 | 3 |
| The Ugly Duckling | 1959 | 3 |
| The Uh-Oh Show | 2009 | 3 |
| Ulli Lommel's Zodiac Killer | 2005 | 2 |
| Ultimate Zombie Feast | 2020 | N/A |
| Umbrage: The First Vampire | 2009 | 2 |
| Unaware | 2010 | 2 |
| The Unbidden | 2016 | 2 |
| The Unborn | 1991 | 3 |
| The Unborn | 2009 | 3 |
| The Unborn II | 1994 | 2 |
| The Uncertain Death | 1973 | N/A |
| Uncle Sam | 1996 | 3 |
| The Undead | 1957 | 3 |
| Undead | 2003 | 3 |
| Undead or Alive: A Zombedy | 2007 | 3 |
| Under Lock and Key | 1995 | 3 |
| Under the Shadow | 2016 | 4 |
| Under the Skin | 2013 | 3 |
| Underground | 2011 | 2 |
| The Underground Banker | 1994 | 3 |
| The Understudy: Graveyard Shift II | 1988 | 2 |
| The Undertaker | 1988 | 3 |
| The Undertaker and His Pals | 1966 | 3 |
| The Undertow | 2003 | 2 |
| Underwater | 2020 | 3 |
| Underworld | 2003 | 4 |
| Underworld: Awakening | 2012 | 3 |
| Underworld: Blood Wars | 2016 | 3 |
| Underworld: Evolution | 2006 | 4 |
| Underworld: Rise of the Lycans | 2009 | 4 |
| Unearthed | 2007 | 2 |
| The Unearthly | 1957 | 2 |
| Unearthly Stranger | 1963 | 4 |
| The Unfamiliar | 2020 | 2 |
| Unfriended | 2014 | 3 |
| Unfriended: Dark Web | 2018 | 3 |
| The Unhealer | 2020 | 3 |
| Unhinged | 1982 | 3 |
| Unhinged | 2017 | 2 |
| Unhinged | 2020 | 3 |
| The Unholy | 1988 | 3 |
| The Unholy | 2021 | 3 |
| The Unholy | 2022 | 3 |
| The Unholy Night | 1929 | 3 |
| Unholy Night | 2019 | 2 |
| Unholy Women | 2006 | 3 |
| Unhuman | 2022 | 2 |
| The Uninvited | 1944 | 4 |
| Uninvited | 1987 | 2 |
| Uninvited | 1993 | 2 |
| The Uninvited | 2001 | 4 |
| The Uninvited | 2003 | 3 |
| The Uninvited | 2009 | 3 |
| The Unknown | 1927 | 4 |
| The Unknown | 1946 | 3 |
| The Unknown | 2000 | 3 |
| Unknown Project | 2013 | 3 |
| The Unknown Terror | 1957 | 3 |
| Unleashing the Demons | 2019 | N/A |
| Unlucky Charms | 2013 | 2 |
| Unman, Wittering and Zigo | 1971 | 4 |
| Unmasked Part 25 | 1988 | 3 |
| The Unnamable | 1988 | 3 |
| The Unnamable II: The Statement of Randolph Carter | 1992 | 3 |
| An Unquiet Grave | 2020 | 3 |
| Unrated II: Scary as Hell | 2011 | N/A |
| Unrated: The Movie | 2009 | 1 |
| Unrest | 2006 | 3 |
| Unsane | 2018 | 4 |
| The Unseen | 1945 | 3 |
| The Unseen | 1980 | 3 |
| The Unseen | 2016 | 3 |
| Unseen Evil | 2001 | 2 |
| Unseen Evil 2 | 2004 | 2 |
| Unspeakable | 2002 | 2 |
| Until Death | 1989 | 3 |
| Untitled Horror Movie | 2021 | 3 |
| The Untold | 2002 | 2 |
| The Untold Story 2 | 1998 | 3 |
| The Untold Story III | 1999 | 3 |
| Untraceable | 2008 | 3 |
| The Unwanted | 2014 | 2 |
| Unwelcome | 2022 | 3 |
| Up from the Depths | 1979 | 2 |
| Ura Horror | 2008 | N/A |
| Urban Explorers | 2011 | 3 |
| Urban Ghost Story | 1998 | 3 |
| Urban Legend | 1998 | 3 |
| Urban Legends: Bloody Mary | 2005 | 2 |
| Urban Legends: Final Cut | 2000 | 2 |
| Urban Scumbags vs. Countryside Zombies | 1992 | N/A |
| Us | 2019 | 4 |
| Useless Humans | 2020 | 3 |
| The Utah Cabin Murders | 2019 | 2 |
| Utopía 7 | 1995 | N/A |