The Toyota T100 is a mid-size pickup truck manufactured and marketed by Toyota for model years 1993–1998 for the United States and Canada over a single generation — and intended and designed specifically for the North American market.

Other than in the United States and Canada, the T100 truck was also sold in the Middle East as the Toyota Grandlux between 1993 and 1996.

As Toyota established itself in the North American compact pickup truck market in the 1980s through 1990s, the company offered a truck that was larger than the compact as an alternative to the traditional North American full-size pickup truck market. North American Toyota dealers had long been requesting a full-sized Toyota truck, especially in light of the high percentage of Truck owners who moved on to domestic full-sized trucks. The T100 reflected a philosophy of designing products specifically for localized international markets, where traditional products sold and made in Japan would not sell well. This approach is also demonstrated with the introduction of the mid-size Camry (XV10) which was larger than the compact Camry (V30) in 1991, and again in 1997 when the Sienna replaced the slow selling Previa.

Rumored for many years before, the 1993 Toyota T100 featured a full-size (8 ft) pickup bed, retaining the engine and suspension setup of its smaller and older sibling, the compact Truck. Although the T100 was a bit larger than the competitive mid-size Dodge Dakota, it was still markedly smaller than full-size American pickup trucks of the time, thus occupying a niche in the mid-size truck market. Before introducing the T100, the company reflected on its history of commercial truck manufacture and products they offered in the past. Past products started with the G1, the FA, the BX, the Stout, the ToyoAce, and the Dyna, and its market successes with their Hino Division. Though economical, reliable, and practical, the T100 was slow to be accepted by traditional buyers of full-size competitors, while it was larger than both the Truck followed by the Tacoma compact trucks. Wary of the market pushback of competing directly with the Big Three, Toyota chose this somewhat smaller size (and limited lineup) so as not to risk blowback and import quotas.

Although sales were slow at the start, the T100 sales did reach into the mid 40,000 vehicles sold range (1996) in the United States. Sales of the Chevrolet C/K were roughly 700,000 per year, while sales of the Ford F-Series surged from 550,000 to nearly 850,000 and Dodge from 100,000 to 400,000 with the introduction of the new Dodge Ram in 1993. Sales of the T100 fell approximately 30 percent when the new Ram went on the market in October 1993, 11 months after the T100's launch in November 1992.

When it was introduced, the T100 had one cab configuration, a regular cab, and one available engine, a 3.0 L V6 engine with 150 hp (112 kW) and 180 lb⋅ft (244 N⋅m) of torque. In 1993, a 2.7 L inline-four engine with 150 hp (112 kW) - same as for the 3.0 L V6 - and 177 lb⋅ft (240 N⋅m) of torque was added in the hopes new buyers would be drawn in with promises of greater fuel economy and a lower price than on the initial offerings. The T100 was the first imported pickup truck that could carry a 4 by 8 feet plywood sheet between the wheelwells. The regular cab could seat three abreast in the front bench seat; this was split on the SR5 model. Automatics received a column shift while manuals were floor mounted, where the transfer case shifter was also located on 4WD models.

Toyota ultimately realized there was no alternative but to add more power to the truck and for the 1995 model year Toyota added the 190 hp (142 kW) and 220 lb⋅ft (298 N⋅m) of torque 3.4 L V6. An Xtracab model came along several months into the 1995 model year as well, sitting on the same 209.1 in (5,311 mm) wheelbase with a 6.25 ft (1.9 m) bed. This provided a boost in sales of 150 percent for 1995. The T100 received only minor changes throughout its run, aside from the engine changes and the Xtracab addition. A driver-side airbag was installed for MY 1994 (a passenger-side airbag never became available), and larger 16-inch wheels became the norm for most of the 4WD models starting in 1996. It was evident by late 1996 or early 1997 that Toyota was already investing in its next truck (what ultimately became the Tundra). At the time (late 1990s) some believed a revamped T100 with a V8 engine was on the way, and there were some reports that altered V8 powered T100s were used as test-mules, but ultimately it never came to pass, and the T100 was superseded by the Tundra.

Toyota Racing Development (TRD) introduced a supercharger for the 3.4 L V6 engine in 1996 and it became available for the T100, the Tacoma and the 4Runner with the 3.4 L V6 (and later the Tundra). Horsepower jumped to the 260 hp (194 kW) range (depending on the generation of the supercharger) and 250 lb⋅ft (339 N⋅m) to 265 lb⋅ft (359 N⋅m) of torque. This power add on was available for 1997–1998 T100s only. Earlier 3.4 L V6 powered T100s have different computer and electrical layouts which do not support the TRD device.^{[citation needed]}