Haplogroup P may refer to:

• Haplogroup P (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup
• Haplogroup P (Y-DNA), a human Y-chromosome (Y-DNA) haplogroup

• Texarkana, AR
• Texarkana, Arkansas
• Texarkana (disambiguation)
• Texarkana Regional Airport
• Texarkana, Texas
• Texarkana, TX
• Texas
• Texas 114
• Texas 161
• Texas 183
• Texas 190
• Texas 42
• Texas 7
• Texas 78
• Texas AandM University
• Texas Academy of Mathematics and Science
• Texas Aggie (magazine)
• Texas Agricultural and Mechanical University
• Texas AgriLife Research
• Texas A&I
• Texas Air Corporation
• Texas Air National Guard
• Texas Air National Guard controversy
• Texas a&m
• Texas A&M