C74 or C-74 may be:
*
C-74 Globemaster
The Douglas C-74 Globemaster was a United States heavy-lift cargo aircraft built by the Douglas Aircraft Company in Long Beach, California. The aircraft was developed after the Japanese attack on Pearl Harbor. The long distances across the Atla ...
, transport aircraft with transoceanic range
* In lighting, a reversed clothespin used to hold gels and light screens in theatrical productions
*
Comiket
, more commonly known as or , is a semiannual Doujinshi convention, ''doujinshi'' convention in Tokyo, Japan. A grassroots market focused on the sale of ''doujin'' (self-published) works, Comiket is a not-for-profit fan convention administered ...
74, The 74th Comiket Convention in Japan
*
Ruy Lopez
The Ruy Lopez (; ), also called the Spanish Opening or Spanish Game, is a chess opening characterised by the moves:
:1. e4 e5
:2. Nf3 Nc6
:3. Bb5
The Ruy Lopez remains one of the most popular chess openings, featuring many variations. In ...
(Spanish Game) opening,
Encyclopaedia of Chess Openings
The ''Encyclopaedia of Chess Openings'' (''ECO'') is a reference work describing the state of Chess theory#Opening theory, opening theory in chess, originally published in five volumes from 1974 to 1979 by the Socialist Federal Republic of Yugos ...
*
Adrenal tumor
An adrenal tumor or adrenal mass is any benign or malignant neoplasms of the adrenal gland, several of which are notable for their ability to overproduce endocrine hormones. Adrenal cancer is the presence of malignant adrenal tumors, which include ...
ICD-10 code
*
Cycling '74, a software development company known for distributing Max/MSP
* Caldwell 74 (
NGC 3132, the Eight-Burst Nebula, or the Southern Ring Nebula), a planetary nebula in the constellation Vela
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