| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Baradero | city | Loreto | Peru | -5.73 | -76.45 | 830 | 447 |
| Barba | city | Lambayeque | Peru | -6.59 | -79.76 | 830 | 25285 |
| Barba Blanca | city | Lima | Peru | -11.83 | -76.62 | 7549 | 2579 |
| Barbacay | city | Ancash | Peru | -10.01 | -77.99 | 941 | 149 |
| Barbacoba | city | La Libertad | Peru | -8.92 | -78.56 | 400 | 15157 |
| Barbacora | city | Cajamarca | Peru | -6.01 | -79.08 | 6190 | 5043 |
| Barbadillo | city | Lima | Peru | -12.03 | -76.93 | 1246 | 445522 |
| Barbara | city | Cusco | Peru | -13.46 | -72.25 | 10935 | 9542 |
| Barbascal | city | Loreto | Peru | -5.01 | -77.22 | 830 | 149 |
| Barbasco | city | Cajamarca | Peru | -6.24 | -79.13 | 7549 | 3036 |
| Barcela | city | Puno | Peru | -15.47 | -71.03 | 15108 | 203 |
| Barcelona | city | Lima | Peru | -12.69 | -76.64 | 114 | 11271 |
| Barcelona | city | Madre de Dios | Peru | -11.85 | -70.03 | 843 | 0 |
| Barcia | city | Loreto | Peru | -5.32 | -73.83 | 360 | 1043 |
| Barinetti Real | city | Junin | Peru | -11.06 | -74.91 | 2657 | 2831 |
| Barracoa | city | Arequipa | Peru | -15.54 | -73.09 | 7099 | 306 |
| Barrallon | city | Huancavelica | Peru | -12.97 | -74.93 | 13428 | 1402 |
| Barranca | city | Lima | Peru | -10.75 | -77.76 | 830 | 40072 |
| Barranca | city | Loreto | Peru | -4.83 | -76.68 | 830 | 149 |
| Barranca | city | Piura | Peru | -4.47 | -81.14 | 830 | 10878 |
| Barranca | city | San Martin | Peru | -7.27 | -76.47 | 1220 | 190 |
| Barranca | city | La Libertad | Peru | -7.86 | -79.32 | 3 | 2710 |
| Barranca | city | San Martin | Peru | -5.68 | -77.42 | 2742 | 52359 |
| Barranca Dos | city | La Libertad | Peru | -7.33 | -79.59 | 3 | 5977 |
| Barranca El Chepo | city | La Libertad | Peru | -7.73 | -79.43 | 26 | 564 |
| Barranca El Pato | city | La Libertad | Peru | -7.74 | -79.40 | 9 | 1658 |
| Barranca Uno | city | La Libertad | Peru | -7.33 | -79.59 | 3 | 5977 |
| Barranco | city | Lima | Peru | -12.14 | -77.02 | 144 | 932066 |
| Barranco | city | Arequipa | Peru | -16.47 | -73.08 | 0 | 1297 |
| Barranco | city | Lambayeque | Peru | -6.60 | -79.81 | 830 | 49272 |
| Barranco | city | Cajamarca | Peru | -6.06 | -79.06 | 4189 | 3697 |
| Barranco | city | Cajamarca | Peru | -5.67 | -79.29 | 8809 | 2431 |
| Barranco | city | Amazonas | Peru | -5.84 | -78.55 | 4189 | 7101 |
| Barranco | city | Tumbes | Peru | -4.11 | -81.00 | 141 | 5272 |
| Barranco | city | Ancash | Peru | -9.10 | -77.78 | 8389 | 13663 |
| Barranco Blanco | city | Lambayeque | Peru | -5.66 | -79.90 | 830 | 596 |
| Barranco Blanco | city | Piura | Peru | -4.96 | -80.04 | 4189 | 5328 |
| Barranco Blanco | city | Piura | Peru | -4.37 | -80.68 | 1938 | 834 |
| Barranco Los Pericos | city | Piura | Peru | -4.19 | -80.90 | 830 | 2777 |
| Barrancos | city | Tumbes | Peru | -4.13 | -80.97 | 318 | 4617 |
| Barranquita | city | San Martin | Peru | -6.25 | -76.03 | 830 | 1509 |
| Barranquita | city | Loreto | Peru | -5.17 | -76.95 | 830 | 149 |
| Barranquita | city | Loreto | Peru | -5.19 | -75.93 | 830 | 149 |
| Barranquita | city | San Martin | Peru | -6.89 | -76.31 | 905 | 6540 |
| Barranquita | city | San Martin | Peru | -6.73 | -76.59 | 1735 | 2248 |
| Barranquito | city | Lima | Peru | -11.60 | -77.23 | 413 | 28483 |
| Barrasa | city | La Libertad | Peru | -7.73 | -79.10 | 830 | 5098 |
| Barraza | city | La Libertad | Peru | -8.12 | -78.98 | 154 | 218833 |
| Barraza Hacienda | city | La Libertad | Peru | -8.12 | -78.98 | 154 | 218833 |
| Barredera Chica | city | Tacna | Peru | -18.13 | -70.71 | 9 | 136 |
| Barredera Grande | city | Tacna | Peru | -18.12 | -70.72 | 6 | 137 |
| Barrial | city | Tacna | Peru | -17.55 | -70.73 | 2519 | 72 |
| Barriendos | city | Apurimac | Peru | -14.03 | -73.50 | 12588 | 716 |
| Barriendosnioc | city | Ayacucho | Peru | -14.08 | -73.79 | 13756 | 808 |
| Barrio | city | Arequipa | Peru | -15.25 | -73.07 | 9511 | 761 |
| Barrio | city | Lima | Peru | -11.12 | -76.54 | 13444 | 552 |
| Barrio 3ro | city | Junin | Peru | -11.85 | -75.29 | 13428 | 19172 |
| Barrio Abajo | city | Junin | Peru | -11.84 | -75.43 | 12647 | 17984 |
| Barrio Alto de Sunampe | city | Ica | Peru | -14.10 | -75.71 | 1669 | 82054 |
| Barrio Arriba | city | Junin | Peru | -11.83 | -75.44 | 12739 | 20652 |
| Barrio Azul | city | Tacna | Peru | -17.28 | -70.64 | 9228 | 596 |
| Barrio Bellavista | city | Piura | Peru | -4.46 | -81.28 | 13 | 1055 |
| Barrio Castilla | city | Piura | Peru | -4.44 | -81.27 | 6 | 754 |
| Barrio Centro | city | Junin | Peru | -11.77 | -75.06 | 13428 | 1394 |
| Barrio Florida | city | Loreto | Peru | -3.64 | -73.22 | 347 | 1042 |
| Barrio Florido | city | Loreto | Peru | -3.64 | -73.22 | 347 | 1042 |
| Barrio Marca | city | Lima | Peru | -11.12 | -76.54 | 13444 | 552 |
| Barrio Medio | city | Loreto | Peru | -7.38 | -75.03 | 830 | 298 |
| Barrio Nuevo | city | Piura | Peru | -5.02 | -80.65 | 177 | 101752 |
| Barrio Nuevo | city | Ica | Peru | -14.34 | -75.68 | 1128 | 379 |
| Barrio Nuevo | city | Lambayeque | Peru | -6.85 | -79.36 | 830 | 2767 |
| Barrio Nuevo | city | Piura | Peru | -4.89 | -81.04 | 29 | 8206 |
| Barrio Nuevo | city | Lambayeque | Peru | -6.94 | -79.59 | 275 | 30986 |
| Barrio Nuevo | city | Piura | Peru | -4.88 | -80.75 | 196 | 1380 |
| Barrio Nuevo | city | San Martin | Peru | -5.71 | -77.38 | 2683 | 52302 |
| Barrio Nuevo | city | Junin | Peru | -11.81 | -75.43 | 12588 | 23275 |
| Barrio Nuevo | city | Junin | Peru | -11.84 | -75.38 | 12588 | 19456 |
| Barrio Obrero | city | Tacna | Peru | -17.28 | -70.64 | 9547 | 596 |
| Barrio Obrero Industrial | city | San Martin | Peru | -12.03 | -77.07 | 387 | 1569656 |
| Barrio Primavera | city | Piura | Peru | -4.46 | -81.28 | 19 | 1055 |
| Barrio San Carlos | city | Ica | Peru | -14.83 | -74.93 | 2509 | 29565 |
| Barrio Supalta | city | Arequipa | Peru | -15.25 | -73.07 | 9511 | 761 |
| Barrio Tercero | city | Junin | Peru | -11.85 | -75.29 | 13428 | 19172 |
| Barrio Vista Alegre | city | Ica | Peru | -14.84 | -74.94 | 2096 | 28700 |
| Barrioputa | city | Junin | Peru | -11.89 | -74.81 | 12933 | 1327 |
| Barrios | city | Piura | Peru | -5.29 | -79.69 | 1873 | 4324 |
| Barrios Altos | city | Lima | Peru | -11.50 | -77.20 | 830 | 76229 |
| Barrizales | city | Loreto | Peru | -3.60 | -71.76 | 321 | 149 |
| Barro | city | Huancavelica | Peru | -12.13 | -74.72 | 7129 | 4408 |
| Barro Alto | city | Cajamarca | Peru | -6.95 | -79.09 | 10908 | 5159 |
| Barro Negro | city | La Libertad | Peru | -8.14 | -78.40 | 10908 | 6104 |
| Barro Negro | city | Cajamarca | Peru | -5.89 | -79.19 | 6906 | 1447 |
| Barro Pampa | city | Apurimac | Peru | -13.98 | -73.49 | 13428 | 788 |
| Barrranco | city | Lima | Peru | -12.63 | -76.65 | 830 | 11520 |
| Bartra | city | Loreto | Peru | -2.53 | -75.73 | 830 | 0 |
| Bartra Nuevo | city | Loreto | Peru | -2.10 | -76.03 | 830 | 0 |