GTW

GTW is an acronym that can refer to several different entities or concepts depending on context. The best-known usage is as the abbreviation for the Grand Trunk Western Railroad (GTW), a historic railroad that operated in the United States, primarily in Michigan, as part of the larger Grand Trunk Railway system. After a period of corporate changes, GTW became part of the Canadian National Railway system, and its lines continued to be used as part of CN's U.S. network.

Beyond the railway, GTW is used as an initialism by various organizations, programs, and projects—often representing unrelated names that share the same initials. Because there is no single canonical meaning, the intended sense of GTW must be inferred from context, including the field, geographic location, and accompanying descriptors.

In addition to transport and organizational uses, GTW may appear in branding, hobbyist circles, or documentation as a shorthand for longer names. When encountered, it is useful to check definitions provided nearby or consult subject-specific glossaries to resolve the exact reference.