LNP may refer to:

In science

• Lecture Notes in Physics, a book series in the field of physics.
• Linear-Nonlinear-Poisson cascade model, a model of neural responses.
• Lipid nanoparticles, a drug delivery system in pharmacology.
• LNP section, a structural steel standard for a family of unequal angle steel sections.

In sport

• Lega Nazionale Professionisti, Italian football league.
• Liga Nacional Profesional, Honduran football league.

In politics and government

• Liberal–National Coalition, Australia
  • Liberal National Party of Queensland
• Liberian National Police
• Local Nature Partnership, environmental coalitions in England

Others

• Local number portability, of telephone numbers
• Lonesome Pine Airport, Virginia, US, IATA code
• LNP (newspaper), Lancaster, Pennsylvania, US
  • LNP Media Group, publisher of the LNP newspaper