This thesis examines the role of language as an instrument of soft power, with a focus on the Sultanate of Oman's efforts in promoting its values, culture, and traditions as a manifestation of the non-coercive methods in its diplomacy. The thesis follows a qualitative case study approach, focusing on Oman's language-related soft power strategies, such as teaching Arabic language to non-natives, providing scholarships for foreign students and offering research fellowships through academic chairs. The thesis data have been collected from interviews with key stakeholders as a primary source, as well as secondary sources including, official documents, books, journals, websites, and news articles. The study reveals that language plays a vital role in wielding soft power and can be used to promote a nation's image internationally. In the case of the Sultanate of Oman, the thesis discusses how Arabic language is being used by Sultan Qaboos University, Sultan Qaboos Institute for Teaching Arabic to Non-Native Speakers and Sultan Qaboos Academic Chairs to foster Oman's soft power. However, challenges still exist in the well-organized application of these initiatives. The findings of this thesis contribute to a clearer understanding of language's role as a soft power instrument and offer a framework to foster the language-related soft power tools. This framework includes developing a national strategy for language-related soft power tools, creating a robust language policy, fostering cooperation among local stakeholders and establishing civil society institutions on Arabic language teaching. This thesis is expected to lead to further discussion on soft power tools used by Sultanate of Oman, promote the it as a key destination for learning Arabic to non-natives, and contribute to the enhancement of its soft power through language.