Piggybacking

Piggyback, piggy-back, or piggybacking may mean:

Transport

 * Piggyback (transportation), something that is riding on the back of something else

Art, entertainment, and media

 * Splash cymbal piggybacking, mounting a cymbal on top of an already stand-mounted cymbal
 * "Piggyback" (song), 2017 song by Melanie Martinez
 * Chapter Nine: The Piggyback, 2022 episode of Stranger Things.

Business, finance, and law

 * Piggy-back (law), shareholder selling rights
 * Piggybacking, a practice in which a person with bad credit uses the seasoned tradeline of credit of someone else

Electronics

 * Piggyback board, a daughterboard

Healthcare

 * Piggybacking, a second infusion set onto the same intravenous line using a Y-Set (intravenous therapy)
 * "Piggy-back technique", is a technique in liver transplantation in which the recipient inferior vena cava is preserved.
 * Vision Correction: The wearing of zero- or very-low-strength soft (daily disposable) contact lenses behind hard lenses if the hard lenses alone are uncomfortable or damaging to the cornea.

Science

 * Piggyback plant, Tolmiea menziesii
 * Piggybacking, technique used in astrophotography
 * PiggyBac transposon system, a type of transposable DNA element

Security

 * Piggybacking (security), when an authorized person allows (intentionally or unintentionally) others to pass through a secure door when they enter.

Telecommunications

 * Piggybacking (data transmission), a bi-directional data transmission technique in network layer, sending data along with ACK called Piggybacking
 * Piggybacking (Internet access), obtaining wireless access by bringing one's own computer within the range of another subscriber's service