TFL

TFL or TfL can mean:

Businesses and organisations

• Transport for London (TfL), an English public transport body
• Trees for Life (disambiguation), several reforesting charities
• TUI fly Netherlands, a Dutch airline (ICAO:TFL)

Sport

• Tackle for loss, a gridiron football defensive play
• Tasmanian Football League, an Australian rules competition

Science, medicine and technology

• Tensor fasciae latae muscle, a thigh/hip muscle
• Terry Fox Laboratory, a unit of BC Cancer Agency, Canada
• Thermally fused laminate, or thermally fused melamine, a material
• Transient friction loading, vibrational mechanical stress

Other uses

• Tyskarna från Lund, a Swedish synthpop band
• "True forced loneliness", a term used by incels