Infiltration may refer to:

Science, medicine, and engineering

• Infiltration (hydrology), downward movement of water into soil

• Infiltration (HVAC), a heating, ventilation, and air conditioning term for air leakage into buildings

• Infiltration (medical), the diffusion or accumulation of substances or cells not normal to it or in amounts in excess of the normal

• Infiltration/Inflow, leakage of groundwater into sanitary sewers

Art

• Infiltration (2017 film), a Canadian film

• Infiltration (2022 film), Russian war drama film

• "Infiltration" (Star Wars: The Bad Batch)

Other uses

• Entryism, the infiltration by a political organisation of another, usually larger, organisation

• In espionage, using double agents to join an enemy organization

• Infiltration tactics, tactics developed by the German army in early 1915 that broke the trench-warfare stalemate on the western front

• Urban exploration, exploring parts of towns, etc. which are normally off-limits

• Infiltration (zine), a popular urban exploration zine/website created by Jeff Chapman (Ninjalicious)

• Seon-Woo Lee (born 1985), professional electronic sports players, specializing in fighting games, who plays under the alias Infiltration

See also

• Infiltrator (disambiguation)