TD1 or TD-1 may refer to:
*TD1 postal district, in the
TD postcode area
The TD postcode area, also known as the Galashiels postcode area, is a group of fifteen postcode districts in south-east Scotland and the far north-east of England, within seventeen post towns. These cover most of the Scottish Borders council ar ...
, covering Galashiels in the Scottish Borders
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Taepodong-1
Taepodong-1 ( ko, 대포동-1) was a three-stage technology demonstrator developed by North Korea, a development step toward an intermediate-range ballistic missile. The missile was derived originally from the Scud rocket and was tested once in 1 ...
missile
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TD1 Catalog of Stellar Ultraviolet Fluxes In 1978, the TD1 Stellar Ultraviolet Flux Survey cataloged the ultraviolet flux of unreddened stars down to the 10th visual magnitude. The Ultraviolet Sky Survey Telescope on board the TD1 completed this full-sky survey. The star catalog survey wa ...
, a star catalogue
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TD1 Personal Credits Tax Return, used by employers in Canada
*TD-1 visa or TD-1 immigration status, for family members of Canadian citizens working in the US in the
TN-1 status
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