West Side or Westside may refer to the following:

Side (Greek: Σίδη Side, Turkish: Side) was an ancient Greek city in Anatolia, in the region of Pamphylia, in what is now Antalya province, on the southern Mediterranean coast of Turkey. It is now a resort town and one of the best-known classical sites in Turkey, near Manavgat and the village of Selimiye, 75 km from Antalya) in the province of Antalya.

It is located on the eastern part of the Pamphylian coast, which lies about 20 km east of the mouth of the Eurymedon River. Today, as in antiquity, the ancient city is situated on a small north-south peninsula about 1 km long and 400 m across.

Strabo and Arrian both record that Side was founded by Greek settlers from Cyme in Aeolis, a region of western Anatolia. This most likely occurred in the 7th century BC. Possessing a good harbour for small-craft boats, Side's natural geography made it one of the most important places in Pamphylia and one of the most important trade centres in the region. According to Arrian, when settlers from Cyme came to Side, they could not understand the dialect. After a short while, the influence of this indigenous tongue was so great that the newcomers forgot their native Greek and started using the language of Side. Excavations have revealed several inscriptions written in this language. The inscriptions, dating from the 3rd and 2nd centuries BC, remain undeciphered, but testify that the local language was still in use several centuries after colonisation. Another object found in the excavations at Side, a basalt column base from the 7th century BC and attributable to the Neo-Hittites, provides further evidence of the site's early history. The name Side is Anatolian in origin and means pomegranate.

The West Side Stadium (also known as the New York Sports and Convention Center) was a proposed football stadium to be built on a platform over the rail yards on the West Side of Manhattan in New York City.

The arena would have been an all-weather facility with a retractable roof, allowing it to be used as either a 200,000 square feet (18,600 m²) indoor convention hall, or an 85,000 seat (75,000 post-Olympics) indoor/outdoor sporting event stadium. It was to be the new home for the New York Jets of the National Football League, who at the time of the proposal played at Giants Stadium in East Rutherford, New Jersey and were junior tenants to the New York Giants. The stadium was to have served as the centerpiece of New York's bid for the 2012 Summer Olympics, but, after heated debate, the proposal was defeated a month before the International Olympic Committee was to make its decision.

The site was to link the transportation, hotel and business hub centered on Herald Square and Madison Square Garden with the Jacob J. Javits Convention Center. It was promoted by New York Governor George Pataki, New York City Mayor Michael Bloomberg, and Congressman Charles Rangel, but opposed by most of the local elected officials representing the area. The centerpiece of the city's bid for the 2012 Summer Olympics, the stadium would have been part of a larger project to revitalize a long-underdeveloped area, including an expansion of the Javits Center and the 7 Subway Extension. It was going to host Super Bowl XLIV in 2010 along with a college bowl game with a Big East team to be known as the Big Apple Bowl.