Texting while driving, also called texting and driving, is the act of composing, sending, or reading text messages on a mobile phone while operating a motor vehicle. Texting while driving is considered extremely dangerous by many people, including authorities, and in some places has either been outlawed or restricted. As a form of distracted driving, texting while driving significantly increases the chances that a driver will be involved in a motor vehicle accident.

A mobile phone is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone. The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which provides access to the public switched telephone network (PSTN). Modern mobile telephone services use a cellular network architecture, and therefore mobile telephones are called cellphones in North America. In addition to telephony, digital mobile phones support a variety of other services, such as text messaging, multimedia messaging, email, Internet access, short-range wireless communications, satellite access, business applications, payments, multimedia playback and streaming, digital photography, and video games. Mobile phones offering only basic capabilities are known as feature phones ; mobile phones that offer greatly advanced computing capabilities are referred to as smartphones.