| Date: | 22–28 October |
| Edition: | 13th |
| Surface: | Hard |
| Location: | Seoul, Korea |
| Champms: | Lu Yen-hsun |
| Champws: |  Erika Sema |
| Champmd: | Lee Hsin-han / Peng Hsien-yin |
| Champwd: |  Nigina Abduraimova /  Chan Wing-yau |
The 2012 Samsung Securities Cup was a professional tennis tournament played on hard courts. It was the 13th edition of the tournament which was part of the 2012 ATP Challenger Tour and the 2012 ITF Women's Circuit. It took place in Seoul, Korea between 22 and 28 October 2012.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Lu Yen-hsun | 58 | 1 | ||
| Japan | Tatsuma Ito | 63 | 2 | |
 Russian Federation | Dmitry Tursunov | 105 | 3 | |
 Tunisia | Malek Jaziri | 112 | 4 | |
 France | Kenny de Schepper | 123 | 5 | |
| Japan | Yūichi Sugita | 141 | 6 | |
| Jimmy Wang | 146 | 7 | ||
 Belarus | Uladzimir Ignatik | 149 | 8 |
The following players received wildcards into the singles main draw:
Chung Hy-Eon Jeong Suk-Young Nam Ji-Sung Nam Hyun-wooThe following players received entry from the qualifying draw:
Lim Yong-Kyu Na Jung-Woong
Divij Sharan| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Donna Vekić | 108 | 1 | ||
| Japan | Erika Sema | 183 | 2 | |
| Korea, Republic of | Han Sung-Hee | 273 | 3 | |
| Hong Kong | Chan Wing-yau | 340 | 4 | |
| Japan | Mai Minokoshi | 343 | 5 | |
| Uzbekistan | Nigina Abduraimova | 344 | 6 | |
| Japan | Chiaki Okadaue | 369 | 7 | |
| Korea, Republic of | Lee So-Ra | 392 | 8 |
The following players received wildcards into the singles main draw:
Han Na-Lae Kang Seo-Kyung Lee Jin-a Song AhThe following players received entry from the qualifying draw:
Choi Ji-Hee Kim Hae-Sung Kim Na-Ri Lee Ye-Rin
Napatsakorn Sankaew Varunya Wongteanchai Yea Hyo-JungSee main article: 2012 Samsung Securities Cup – Men's singles.
Yūichi Sugita, 6–3, 7–6(7–4)See main article: 2012 Samsung Securities Cup – Women's singles.
Erika Sema def. Mai Minokoshi, 6–1, 7–5See main article: 2012 Samsung Securities Cup – Men's doubles.
Lim Yong-Kyu / Nam Ji-Sung, 7–6(7–3), 7–5See main article: 2012 Samsung Securities Cup – Women's doubles.
Nigina Abduraimova / Chan Wing-yau def. Kim Ji-Young / Yoo Mi, 6–4, 2–6, [12–10]