The Frontier can refer to:

• The Frontier previous name for the New Frontier Hotel and Casino
• The Frontier (Hong Kong), a political group in Hong Kong
• The Frontier (Chilean history), ({{lang-es|La Frontera}}) the limit between the Spanish/Chilean state and Mapuche territory.
• The Frontier (website), Non-profit investigatory journalism in Oklahoma
• The Frontier (North American history), can be a reference to a place in a certain time in American history.
• The Frontier (TV series), a television series under development.
• The Frontier (1991 film), a 1991 Chilean film directed by Ricardo P. Larrain
• The Frontier (2014 film), an American drama film by Matt Rabinowitz
• The Frontier (2015 film), an American crime film

• Hasanabad, Salehabad
• Hasanabad, Sanandaj
• Hasanabad, Saqqez
• Hasanabad, Sarband
• Hasanabad, Sarbisheh
• Hasanabad, Sarcheshmeh
• Hasanabad, Sardasht
• Hasanabad, Sari
• Hasanabad, Sarvestan
• Hasanabad, Savobolagh
• Hasanabad, Savojbolagh
• Hasanabad, Sedeh
• Hasanabad, Semnan
• Hasanabad, Sepidan
• Hasanabad, Seyyedan
• Hasanabad, Shahr-e Babak
• Hasanabad, Shahrud
• Hasanabad, Sheshdeh and Qarah Bulaq
• Hasanabad, Shiraz
• Hasanabad, Shirin Su
• Hasanabad, Shurab
• Hasanabad, Shushtar
• Hasanabad, Silvaneh
• Hasanabad, Sirjan
• Hasanabad, Sirjan (disambiguation)