A66, A 66 or A-66 may refer to:
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A66 State Route (Australia)
Riddoch Highway is a rural highway in south-eastern South Australia, designated as route A66 between Keith and Mount Gambier, with the remainder between Mount Gambier and Port MacDonnell designated as route B66. It is named after John Riddoch, t ...
, a road in South Australia connecting Keith and Port MacDonnell
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Autopista 66 (Cuba)
An autopista is a controlled-access highway
A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, m ...
, motorway connecting the Autopista Nacional with Sancti Spiritus
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A66 road (England), a road connecting Middlesbrough and Penrith/Workington
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A66 motorway (France)
The A66 autoroute is a long motorway in the south of France, also called L'Ariégeoise.
It is in the departments of the Haute-Garonne and Ariège, and connects Villefranche-de-Lauragais with a junction to the A61 at its north and ends at t ...
, a road connecting Villefranche-de-Lauragais and Pamiers
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A66 motorway (Germany)
is an autobahn in southwestern Germany. It connects the Taunus to Fulda, passing close to Frankfurt am Main. The first part of the autobahn between Wiesbaden and the Nordwestkreuz Frankfurt, was opened as early as 1934, then called the ''Rhe ...
, a road connecting the Taunus and Fulda
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A66 motorway (Spain), a road connecting Gijón and Seville
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Benoni Defense, in the Encyclopaedia of Chess Openings
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HLA-A66, an HLA-A serotype
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