List of highways numbered 999
Canada
Israel
Netherlands
United States
- {{jct|state=MD|MD|999}} (former)
- {{jct|state=PA|PA|999}}
- {{jct|state=TX|FM|999}}
- Puerto Rico Highway 999 (former)
{{Sequence
| prev = 998
| list = Lists of highways
| curr = 999
| next = 1000–1499
}}
{{List of highways numbered index}}
{{Authority control}}
{{Road index|999}}