| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Dahaneh | city | Semnan | Iran | 35.50 | 56.90 | 4340 | 298 |
| Dahaneh-ye Dang Sar | city | Semnan | Iran | 36.54 | 54.64 | 8740 | 14591 |
| Dahaneh-ye Marghzar | city | Semnan | Iran | 36.55 | 54.65 | 7677 | 14496 |
| Dahaneh-ye Marghzār | city | Semnan | Iran | 36.55 | 54.68 | 7834 | 9237 |
| Dahu | city | Semnan | Iran | 35.99 | 54.36 | 3454 | 298 |
| Dakhi | city | Semnan | Iran | 36.54 | 54.98 | 5029 | 9936 |
| Dalijan | city | Semnan | Iran | 35.50 | 53.41 | 3415 | 6308 |
| Dalleh | city | Semnan | Iran | 35.58 | 55.27 | 4416 | 298 |
| Damdari-ye Bamdad | city | Semnan | Iran | 36.24 | 54.57 | 3776 | 298 |
| Danbeh-ye Pa'in | city | Semnan | Iran | 36.40 | 54.15 | 5869 | 300 |
| Danbeh-ye Pā’īn | city | Semnan | Iran | 36.40 | 54.15 | 5869 | 300 |
| Danbu-ye Pa'in | city | Semnan | Iran | 36.40 | 54.15 | 5869 | 300 |
| Danbū-ye Pā’īn | city | Semnan | Iran | 36.40 | 54.15 | 5869 | 300 |
| Dar Khānā | city | Semnan | Iran | 36.57 | 54.70 | 8530 | 7571 |
| Daragazin | city | Semnan | Iran | 35.64 | 53.33 | 4360 | 13895 |
| Darani | city | Semnan | Iran | 36.07 | 55.82 | 3615 | 298 |
| Darb Ahang | city | Semnan | Iran | 35.84 | 56.63 | 3349 | 298 |
| Darband | city | Semnan | Iran | 35.75 | 53.37 | 6807 | 16465 |
| Darbar | city | Semnan | Iran | 36.00 | 53.91 | 5291 | 298 |
| Dargu'i | city | Semnan | Iran | 36.49 | 54.64 | 6955 | 5723 |
| Dargū’ī | city | Semnan | Iran | 36.49 | 54.64 | 6955 | 5723 |
| Darjazin | city | Semnan | Iran | 35.64 | 53.33 | 4360 | 13895 |
| Darkhūn Āb | city | Semnan | Iran | 36.49 | 54.70 | 6709 | 1711 |
| Darreh | city | Semnan | Iran | 36.75 | 55.13 | 5869 | 1765 |
| Darreh Da'i | city | Semnan | Iran | 35.79 | 55.55 | 4189 | 298 |
| Darreh Dā’ī | city | Semnan | Iran | 35.79 | 55.55 | 4189 | 298 |
| Darreh Gaz | city | Semnan | Iran | 36.63 | 55.12 | 5029 | 298 |
| Darreh-e Gaz | city | Semnan | Iran | 35.42 | 54.79 | 4232 | 298 |
| Darreh-ye Āsīū Dar | city | Semnan | Iran | 36.75 | 55.13 | 5869 | 1765 |
| Darvish | city | Semnan | Iran | 35.49 | 54.77 | 4576 | 298 |
| Darvish `Abdollah | city | Semnan | Iran | 35.49 | 54.77 | 4576 | 298 |
| Darvān | city | Semnan | Iran | 35.46 | 52.98 | 5190 | 1766 |
| Darvār | city | Semnan | Iran | 36.00 | 53.91 | 5291 | 298 |
| Darvīsh ‘Abdollāh | city | Semnan | Iran | 35.49 | 54.77 | 4576 | 298 |
| Darwar | city | Semnan | Iran | 36.00 | 53.91 | 5291 | 298 |
| Darzazin | city | Semnan | Iran | 35.64 | 53.33 | 4360 | 13895 |
| Darzemārān | city | Semnan | Iran | 35.24 | 52.44 | 3349 | 21998 |
| Darz̄emārān | city | Semnan | Iran | 35.24 | 52.44 | 3349 | 21998 |
| Dashn Talow | city | Semnan | Iran | 36.49 | 54.60 | 7112 | 7544 |
| Dasht Bu | city | Semnan | Iran | 36.03 | 53.83 | 6820 | 495 |
| Dasht Gonbad | city | Semnan | Iran | 35.80 | 53.21 | 7549 | 562 |
| Dasht-e Bū | city | Semnan | Iran | 36.03 | 53.83 | 6820 | 495 |
| Dasht-e Gonbad | city | Semnan | Iran | 35.80 | 53.21 | 7549 | 562 |
| Dasht-e Sefid | city | Semnan | Iran | 35.78 | 53.18 | 8389 | 1049 |
| Dasht-e Shad | city | Semnan | Iran | 37.27 | 55.77 | 5029 | 804 |
| Dashtadi | city | Semnan | Iran | 36.03 | 53.83 | 6820 | 495 |
| Dashtak | city | Semnan | Iran | 35.37 | 52.74 | 5416 | 1417 |
| Dashtboo | city | Semnan | Iran | 36.03 | 53.83 | 6820 | 495 |
| Dashtgu | city | Semnan | Iran | 36.03 | 53.83 | 6820 | 495 |
| Dast Shah | city | Semnan | Iran | 37.27 | 55.77 | 5029 | 804 |
| Dast-e Sha | city | Semnan | Iran | 37.27 | 55.77 | 5029 | 804 |
| Dast-e Shāh | city | Semnan | Iran | 37.27 | 55.77 | 5029 | 804 |
| Dast-i-Gird | city | Semnan | Iran | 36.14 | 56.09 | 3349 | 298 |
| Dastan | city | Semnan | Iran | 36.49 | 54.56 | 7549 | 10497 |
| Dastgerd | city | Semnan | Iran | 36.14 | 56.09 | 3349 | 298 |
| Dastjerd | city | Semnan | Iran | 36.14 | 56.09 | 3349 | 298 |
| Dastī | city | Semnan | Iran | 37.04 | 55.73 | 5029 | 298 |
| Daulatabad | city | Semnan | Iran | 36.07 | 54.18 | 4189 | 298 |
| Daulatabad | city | Semnan | Iran | 35.17 | 52.50 | 2726 | 12404 |
| Davarabad | city | Semnan | Iran | 35.22 | 52.48 | 2821 | 23524 |
| Deh Kheyr | city | Semnan | Iran | 36.54 | 54.98 | 5029 | 9936 |
| Deh Khodā | city | Semnan | Iran | 36.03 | 53.83 | 5869 | 495 |
| Deh Naqsh | city | Semnan | Iran | 35.12 | 52.44 | 2585 | 3574 |
| Deh Now | city | Semnan | Iran | 35.45 | 54.62 | 5879 | 298 |
| Deh Now-ye Bālā | city | Semnan | Iran | 35.45 | 54.62 | 5879 | 298 |
| Deh Posht | city | Semnan | Iran | 35.89 | 53.13 | 7818 | 2480 |
| Deh Sarab | city | Semnan | Iran | 35.28 | 52.43 | 3349 | 12882 |
| Deh Sib | city | Semnan | Iran | 36.36 | 55.02 | 4189 | 35815 |
| Deh Soltan | city | Semnan | Iran | 35.19 | 52.51 | 2775 | 17782 |
| Deh Sūfīyān | city | Semnan | Iran | 35.82 | 53.39 | 7549 | 4422 |
| Deh-e Molla | city | Semnan | Iran | 36.27 | 54.76 | 4189 | 298 |
| Deh-e Moţahharī | city | Semnan | Iran | 35.65 | 56.57 | 4412 | 298 |
| Deh-e Namak | city | Semnan | Iran | 35.25 | 52.73 | 2670 | 0 |
| Deh-e Qatar Zereshk | city | Semnan | Iran | 36.51 | 54.78 | 6827 | 298 |
| Deh-e Qazi | city | Semnan | Iran | 35.99 | 54.29 | 3615 | 298 |
| Deh-e Siq | city | Semnan | Iran | 36.36 | 55.02 | 4189 | 35815 |
| Deh-e Solţān | city | Semnan | Iran | 35.19 | 52.51 | 2775 | 17782 |
| Deh-e Şūfīān | city | Semnan | Iran | 35.82 | 53.39 | 7549 | 4422 |
| Deh-i-Mulla | city | Semnan | Iran | 36.27 | 54.76 | 4189 | 298 |
| Deh-i-Siq | city | Semnan | Iran | 36.36 | 55.02 | 4189 | 35815 |
| Deh-i-Sultan | city | Semnan | Iran | 35.19 | 52.51 | 2775 | 17782 |
| Dehaqin | city | Semnan | Iran | 35.45 | 53.17 | 3681 | 5539 |
| Dehkadeh-ye Khāneh Golī | city | Semnan | Iran | 36.53 | 56.38 | 2900 | 298 |
| Dehmolla | city | Semnan | Iran | 36.27 | 54.76 | 4189 | 298 |
| Dehnū | city | Semnan | Iran | 36.10 | 54.38 | 3667 | 10477 |
| Dehu | city | Semnan | Iran | 36.10 | 54.38 | 3667 | 10477 |
| Delarun | city | Semnan | Iran | 36.88 | 56.23 | 3651 | 1788 |
| Delavaran | city | Semnan | Iran | 36.88 | 56.23 | 3651 | 1788 |
| Delazian | city | Semnan | Iran | 35.50 | 53.41 | 3415 | 6308 |
| Delbar | city | Semnan | Iran | 35.97 | 56.06 | 4189 | 298 |
| Deliāzān | city | Semnan | Iran | 35.50 | 53.41 | 3415 | 6308 |
| Delāzeyān | city | Semnan | Iran | 35.50 | 53.41 | 3415 | 6308 |
| Delāzīyān | city | Semnan | Iran | 35.50 | 53.41 | 3415 | 6308 |
| Deraz Ab | city | Semnan | Iran | 35.42 | 56.86 | 5029 | 298 |
| Derazu | city | Semnan | Iran | 35.42 | 56.86 | 5029 | 298 |
| Derazu | city | Semnan | Iran | 35.83 | 53.20 | 8661 | 1357 |
| Derāzā | city | Semnan | Iran | 35.93 | 53.25 | 10068 | 6862 |
| Destisha | city | Semnan | Iran | 37.27 | 55.77 | 5029 | 804 |
| Dez Chah | city | Semnan | Iran | 35.83 | 55.79 | 5029 | 298 |
| Dez Gereh | city | Semnan | Iran | 35.91 | 53.42 | 7798 | 5685 |
| Dez Gereh | city | Semnan | Iran | 35.91 | 53.42 | 8530 | 5685 |
| Dezej | city | Semnan | Iran | 36.36 | 55.02 | 4189 | 35815 |
| Dezian | city | Semnan | Iran | 36.00 | 55.99 | 5426 | 298 |
| Diktash | city | Semnan | Iran | 35.72 | 53.47 | 5869 | 2653 |
| Djam | city | Semnan | Iran | 35.78 | 53.90 | 5869 | 447 |
| Do Chāh | city | Semnan | Iran | 35.83 | 55.79 | 5029 | 298 |
| Do Chīleh | city | Semnan | Iran | 36.42 | 55.93 | 4189 | 298 |
| Do Dangeh | city | Semnan | Iran | 36.04 | 53.43 | 7549 | 8195 |
| Do Lashi | city | Semnan | Iran | 34.66 | 54.56 | 2509 | 298 |
| Dochah | city | Semnan | Iran | 35.75 | 55.59 | 4189 | 298 |
| Dowlatabad | city | Semnan | Iran | 36.07 | 54.18 | 4189 | 298 |
| Dowlatabad | city | Semnan | Iran | 35.17 | 52.50 | 2726 | 12404 |
| Dowlatabad | city | Semnan | Iran | 35.18 | 52.50 | 2755 | 15248 |
| Dowlatābād | city | Semnan | Iran | 36.52 | 55.01 | 4534 | 19800 |
| Dowlatābād | city | Semnan | Iran | 35.19 | 52.50 | 2719 | 19198 |
| Dowluvank | city | Semnan | Iran | 35.79 | 53.46 | 7549 | 566 |
| Dowzahir | city | Semnan | Iran | 35.64 | 53.90 | 5367 | 447 |
| Dozair | city | Semnan | Iran | 35.64 | 53.90 | 5367 | 447 |
| Dozd Gholāmān | city | Semnan | Iran | 36.31 | 54.68 | 4189 | 298 |
| Dozderah | city | Semnan | Iran | 36.38 | 54.10 | 5928 | 300 |
| Duryan | city | Semnan | Iran | 35.46 | 52.98 | 5190 | 1766 |
| Duzahir | city | Semnan | Iran | 35.64 | 53.90 | 5367 | 447 |
| Dāmdārī | city | Semnan | Iran | 36.24 | 54.43 | 4189 | 8803 |
| Dāmdārī | city | Semnan | Iran | 36.07 | 54.24 | 4189 | 298 |
| Dāmdārī | city | Semnan | Iran | 36.24 | 54.57 | 3776 | 298 |
| Dāmdārī-ye Dānyāl | city | Semnan | Iran | 36.24 | 54.43 | 4189 | 8803 |
| Dāmdārī-ye Reyḩāneh-ye Qowms | city | Semnan | Iran | 36.07 | 54.24 | 4189 | 298 |
| Dāmghān | city | Semnan | Iran | 36.17 | 54.34 | 4189 | 32649 |
| Dībāj | city | Semnan | Iran | 36.43 | 54.22 | 6138 | 556 |
| Dīnū | city | Semnan | Iran | 36.62 | 55.25 | 5029 | 298 |
| Dīz Chāh | city | Semnan | Iran | 35.83 | 55.79 | 5029 | 298 |
| Dīzaj | city | Semnan | Iran | 36.36 | 55.02 | 4189 | 35815 |
| Dīzej | city | Semnan | Iran | 36.36 | 55.02 | 4189 | 35815 |
| Dīāb | city | Semnan | Iran | 35.66 | 53.75 | 5869 | 447 |
| Dīāk | city | Semnan | Iran | 35.89 | 53.44 | 8671 | 3534 |
| Dīān | city | Semnan | Iran | 35.41 | 54.46 | 5095 | 298 |
| Dūlāb | city | Semnan | Iran | 36.23 | 54.59 | 3661 | 298 |