RTK

RTK may refer to:

Science and technology

• Real-time kinematic positioning, a technique for precision satellite navigation
• Receptor tyrosine kinase, high-affinity cell surface receptors

Other uses

• Radio Television of Kosovo, public service broadcaster in Kosovo
• Rentech (NYSE symbol), a former US company
• Right to know, a human right enshrined in law
• Remembering the Kanji (RTK1, RTK2, RTK3), books teaching Japanese Kanji