From fresh Mexican tacos to juicy Peruvian chicken, here are some of my favorite spots for Latin American and Spanish fare:

Nazca Mohica (Peruvian) | 1633 P Street NW
Maïz64 (Mexican) | 1324 14th Street NW
Estadio (Spanish) | 1520 14th Street NW
Barcelona Wine Bar (Spanish Tapas) | 1622 14th Street NW
Oyamel Cocina (Mexican) | 401 7th Street NW
Jaleo (Spanish Tapas) | 480 7th Street NW
Boqueria (Spanish) | 1837 M Street NW
Tico (Latin American) | 1926 14th Street NW
Rosa Mexicana (Mexican) | 575 7th Street NW
China Chilcano (Peruvian-Asian) | 418 7th Street NW
El Rinconcito Cafe (Salvadoran) | 1129 11th Street NW
Pisco y Nazca Ceviche Gastrobar (Peruvian) | 1823 L Street NW
Judy Restaurant (Salvadoran & Mexican) | 2212 14th Street NW
Chaia Taco (Vegetarian Tacos) | 3207 Grace Street NW
Taco Bamba (Tacos) | 777 I Street NW
Zen Taco (Tacos) | 1747 Pennsylvania Avenue NW
Tiki Taco (Tacos) | 2010 P Street NW
District Taco (Tacos) | Several locations
Surfside (Tacos & Tex-Mex) | 1800 N Street NW
Jaco Juice & Taco Bar (Mexican) | 1614 Wisconsin Avenue NW

A bit outside the city, but worth the trek:
El Mariachi (Mexican) | 765 Rockville Pike, Rockville
La Limena (Peruvian) | 1093 Rockville Pike, Rockville
Luzmary (Bolivian) | 7151 Lee Highway, Falls Church