Conifer may refer to:

• Pinophyta (conifers), cone-bearing seed plants
• Conifer, Colorado, an unincorporated town in the United States
  • Conifer High School
• Conifer, Pennsylvania, an unincorporated community
• Conifer Grove, a suburb of Auckland, New Zealand
• Taiga, a biome characterized by coniferous forests
• USCGC Conifer (WLB-301), a U.S. Coast Guard seagoing buoy tender

• William Allan Chapple
• William Allan (geneticist)
• William Allan McRae
• William Allan McRae, Jr.
• William Allan McRae Jr.
• William Alleine
• William Allen (actor)
• William Allen (Anglo-Zulu War VC)
• William Allen (boeing)
• William Allen (Boeing)
• William Allen Butler
• William Allen (Cardinal)
• William Allen Chipman
• William Allen (Congregationalist)
• William Allen (disambiguation)
• William Allen Harbinson
• William Allen Johnson
• William Allen (Liberal politician)
• William Allen (Medal of Honor recipient)
• William Allen (National Liberal politician)
• William Allen Rogers
• William Allen (sailor)
• William Allen (soldier)
• William Allen Stewart
• William Allen Walsh