E66
E66 or E 66 stands for:
- Obesity , severe overweight according to the ICD-10 code
- BMW E66 , a car model
- European route 66 , a trunk road from Brixen in Italy to Székesfehérvár in Hungary
- Nokia E66 , a mobile phone
- Enercon E-66 a wind power plant from Enercon (from 1995 and 2005 2478 plants were installed) with 1.5 to 2.0 MW