The International Congress of Orientalists, initiated in Paris in 1873, was an international conference of Orientalists. It was later renamed as the International Congress of Human Sciences in Asia and North Africa and then as the International Congress of Asian and North African Studies. This material covers the interaction of the Royal Asiatic Society with the Congress in the time period 1889 to 1993.

The 25th International Congress of Orientalists was held in Moscow in August 1960. The material associated with this Congress is:

• First Circular for the XXVth International Congress of Orientalists from B.G. Gafurov, Chairman, and I.M. Diakonoff, Secretary, Organising Committee, giving details of the dates and sections for the Congress. Printed in Russian and English, undated.
• Second Circular from the Organising Committee to give further organisational information regarding the Congress. Printed in Russian and English, undated. With the circular is an application form for attendance at the Congress, also printed in Russian and English.
• Announcement from the Royal Asiatic Society of the 25th International Congress with the sections and registration fee. Printed, dated September 1959.
• Application form to attend the Congress. Printed in Russian and English, undated.
• Notice of flights to and hotels in Moscow. Typed with handwritten annotations, undated.
• List of British delegates for the Congress. Typed, undated.
• Letter from the International Union of Orientalists to the Royal Asiatic Society to invite the Society to take part in the General Assembly at the forthcoming Congress. Typed, dated 8 July 1960.
• Letter from Denis Sinor to Mrs Davis, Royal Asiatic Society, to ask her to make sure that the Society's subscription is paid to the International Union of Orientalists. Typed, dated 11 July 1960.