| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Kadisas | city | Andalucia | Spain | 36.52 | -6.28 | 101 | 92272 |
| Kadiz | city | Andalucia | Spain | 36.52 | -6.28 | 101 | 92272 |
| Kadizo | city | Andalucia | Spain | 36.52 | -6.28 | 101 | 92272 |
| Kadyks | city | Andalucia | Spain | 36.52 | -6.28 | 101 | 92272 |
| Kalagorria | city | La Rioja | Spain | 42.31 | -1.97 | 1010 | 15536 |
| Kalearte | city | Euskadi | Spain | 43.09 | -2.73 | 1669 | 2019 |
| Kalezar | city | Euskadi | Spain | 43.27 | -2.04 | 219 | 109227 |
| Kampaspero | city | Castilla y Leon | Spain | 41.49 | -4.20 | 2919 | 1716 |
| Kanaria Handiko Las Palmas | city | Canarias | Spain | 28.10 | -15.41 | 374 | 162418 |
| Kanpantxu | city | Euskadi | Spain | 43.30 | -2.67 | 121 | 18508 |
| Karabanĉelo | city | Madrid | Spain | 40.38 | -3.74 | 1952 | 433274 |
| Karkamu | city | Euskadi | Spain | 42.86 | -3.04 | 2509 | 311 |
| Karrika | city | Euskadi | Spain | 43.29 | -1.86 | 314 | 60278 |
| Kartachena | city | Murcia | Spain | 37.61 | -0.99 | 141 | 31858 |
| Kartagena | city | Murcia | Spain | 37.61 | -0.99 | 141 | 31858 |
| Kartagina | city | Murcia | Spain | 37.61 | -0.99 | 141 | 31858 |
| Kartagjena | city | Murcia | Spain | 37.61 | -0.99 | 141 | 31858 |
| Kartahena | city | Murcia | Spain | 37.61 | -0.99 | 141 | 31858 |
| Kartaĥeno | city | Murcia | Spain | 37.61 | -0.99 | 141 | 31858 |
| Kaseresa | city | Extremadura | Spain | 39.48 | -6.37 | 1669 | 23988 |
| Kaseresas | city | Extremadura | Spain | 39.48 | -6.37 | 1669 | 23988 |
| Katadiano | city | Euskadi | Spain | 42.91 | -2.89 | 2657 | 769 |
| Kexaa | city | Euskadi | Spain | 43.08 | -3.07 | 1669 | 1754 |
| Kexaa / Quejana | city | Euskadi | Spain | 43.08 | -3.07 | 1669 | 1754 |
| Kintana | city | Euskadi | Spain | 42.66 | -2.48 | 2683 | 571 |
| Kixoi | city | Asturias | Spain | 43.54 | -5.66 | 16 | 87640 |
| Kokao | city | Castilla y Leon | Spain | 41.22 | -4.52 | 2536 | 1814 |
| Komunioi | city | Euskadi | Spain | 42.72 | -2.97 | 1669 | 22636 |
| Komunioi / Comunión | city | Euskadi | Spain | 42.72 | -2.97 | 1669 | 22636 |
| Kontrasta | city | Euskadi | Spain | 42.77 | -2.30 | 2811 | 491 |
| Kordoba | city | Andalucia | Spain | 37.89 | -4.77 | 351 | 67052 |
| Kordowa | city | Andalucia | Spain | 37.89 | -4.77 | 351 | 67052 |
| Korres | city | Euskadi | Spain | 42.70 | -2.43 | 2824 | 728 |
| Kortazar | city | Euskadi | Spain | 43.36 | -2.54 | 416 | 9120 |
| Kortezubi | city | Euskadi | Spain | 43.34 | -2.65 | 131 | 17234 |
| Korunjo | city | Galicia | Spain | 43.37 | -8.41 | 3 | 216810 |
| Kripan | city | Euskadi | Spain | 42.59 | -2.52 | 2509 | 1086 |
| Krispina / Crispijana | city | Euskadi | Spain | 42.85 | -2.73 | 1689 | 88123 |
| Krispiña | city | Euskadi | Spain | 42.85 | -2.73 | 1689 | 88123 |
| Krutzea | city | Euskadi | Spain | 43.28 | -2.84 | 219 | 66322 |
| Kuenka | city | Castilla-La Mancha | Spain | 40.07 | -2.13 | 3349 | 19605 |
| Kurtzea | city | Euskadi | Spain | 43.28 | -2.84 | 219 | 66322 |
| Kurtzea | city | Euskadi | Spain | 43.23 | -2.84 | 190 | 75161 |
| Kurtziaga | city | Euskadi | Spain | 43.35 | -2.50 | 416 | 8979 |
| Kutxu | city | Castilla y Leon | Spain | 42.74 | -2.77 | 1820 | 1064 |
| Kvenko | city | Castilla-La Mancha | Spain | 40.07 | -2.13 | 3349 | 19605 |