Abstract The allegation against Qatar for its link with terrorist financing has resulted in the country incorporated in the Gulf Cooperation Countries (GCC) regional organization being excluded from its membership in the organization. Qatar is considered to have violated the agreement in the organization because it has received a Muslim Brotherhood that is con-sidered to threaten and disrupt the stability of the Gulf region’s security. In the case of this diplomatic termination, Saudi Arabia became the main control holder. But as we know that Saudi Arabia is a neighboring coun-try that has good relations with Qatar. So that allegedly there is a linkage of the United States in this country’s Gulf of diplomatic conflicts. This is based on the inconsistency of the united states in action. Qatar is cele-brating one of America’s largest trading partners in military supplies, but precisely the United States’s president trump, strongly opposed to Qatar’s unproven crime. So with the qualitative method, this paper will discuss the involvement of the united states in Qatar’s alleged terrorism financing in terms of national interest achievement. Keywords: Qatar; Arab Saudi; United States; Involvement Abstrak Tuduhan terhadap Qatar karena hubungannya dengan pendanaan teroris telah mengakibatkan negara yang tergabung dalam organisasi regional Gulf Cooperation Countries (GCC) dikeluarkan dari keanggotaannya dalam organisasi. Qatar dianggap telah melanggar perjanjian dalam organisasi karena telah menerima Ikhwanul Muslimin yang dianggap mengancam dan mengganggu stabilitas keamanan kawasan Teluk. Dalam kasus penghentian diplomatik ini, Arab Saudi menjadi pemegang kend-ali utama. Tapi seperti yang kita tahu bahwa Arab Saudi adalah negara tetangga yang memiliki hubungan baik dengan Qatar. Sehingga diduga ada keterkaitan Amerika Serikat dalam konflik diplomatik Teluk negara ini. Ini didasarkan pada ketidakkonsistenan negara-negara bersatu dalam aksi. Qatar sedang merayakan salah satu mitra dagang terbesar Ameri-ka dalam pasokan militer, tetapi justru presiden Amerika Serikat, sangat menentang kejahatan yang belum terbukti di Qatar. Jadi dengan metode kualitatif, makalah ini akan membahas keterlibatan negara-negara bersatu dalam dugaan pendanaan terorisme Qatar dalam hal pencapaian kepentingan nasional. Kata Kunci: Qatar; Arab Saudi; Amerika Serikat; Keterlibatan