This article provides a listing with simple descriptions of the streets in the Puerto Rican municipality (municipio) of San Juan.^[1]

List of streets

Name	Southern or western terminus	Northern or eastern terminus	Length, mi (km)	No. of lanes	Traffic direction	Notes	Photo
Avenida Juan Ponce de León	—	—	unknown	1–3	S to N	—
Avenida Luis Muñoz Rivera	—	—	unknown	2–4	N to S	—
Calle Central	Calle Villa Verde	Calle José Martí	0.26 (0.42)	1–2	N to S	Calle Central's path is interrupted by the Expreso Luis Muñoz Rivera (PR-1).[2]
Calle de la Cruz	Calle del Recinto Sur	Dead-end	0.3 (0.48)	1	S to N	—
Calle de la Fortaleza [es]	La Fortaleza	Calle del Recinto Sur	0.48 (0.77)	1	W to E	Continues east as Avenida de la Constitución (Avenida Juan Ponce de León).[3]
Calle José Martí	Calle Olimpo	Calle Suau	0.41 (0.66)	2	E to W	—
Calle de la Luna	—	—	unknown	1	W to E	Calle Luna, Calle Sol is the name of song by Puerto Rican salsa musicians, Willie Colón and Héctor Lavoe.[4][5]
Calle Madrid	Avenida Juan Ponce de León	Marginal Baldorioty de Castro	0.1 (0.16)	1	N to S	—
Calle de San José	Calle de Tetuán	Calle de San Sebastián	0.23 (0.37)	1	N to S	—
Calle de San Justo	Calle del Comercio	Calle de Norzagaray	0.34 (0.55)	1–2	N to S	Runs southbound, one-way from Calle de Norzagaray to Calle del Recinto Sur where it becomes a two-lane, two-way street for one block.[6]
Calle de San Sebastián	Dead-end	Calle de la Tanca	0.43 (0.69)	1	W to E	Traffic runs westbound from Calle de San Justo to the dead-end and eastbound from Calle de San Justo to Calle de la Tanca.[7]
Calle del Sol	—	—	unknown	1	E to W	Calle Luna, Calle Sol is the name of song by Puerto Rican salsa musicians, Willie Colón and Héctor Lavoe.[4][5]
Calle Trigo	Avenida Juan Ponce de León	Marginal Baldorioty de Castro	0.12 (0.19)	1	N to S	—
Calle Unión	Calle Las Palmas	Marginal Baldorioty de Castro	0.35 (0.56)	1	S to N	The street is segmented between Avenida Juan Ponce de León and Calle McKinley.
Paseo de la Princesa	Paseo del Morro	Calle Tizol	unknown	2	W to E	—