Questa is a village in Taos County, New Mexico, United States. The population was 1,864 at the 2000 census. Located on the Enchanted Circle scenic highway, near the confluence of the Rio Grande and the Red River, Questa is the least tourist-oriented town on the route. With a large Hispanic population, the village economy is largely dependent on agriculture and income from the nearby Chevron  molybdenum mine. Many residents also commute to Taos, Red River, and Angel Fire to work in the hospitality industries there.

Queueing Systems is a peer-reviewed scientific journal covering queueing theory. It is published by Springer Science+Business Media. The current editor-in-chief is Sergey Foss. According to the Journal Citation Reports, the journal has a 2010 impact factor of 0.802.