Al-Hamidiyah Palace (Arabic: قصر الحميدية, romanized: Qasr al-Ḥamīdīah) or al-Hamidiyah Building (Arabic: مبنى الحميدية, romanized: Mabnai al-Ḥamīdīah) was an Ottoman-era double storey government building in the Ajyad district of Mecca, Saudi Arabia.

Built by the-then Ottoman governor of Hejaz Osman Nuri Pasha in 1885, it was named after Sultan Abdul Hamid II.

The building was constructed upon the orders from then governor of Hejaz Osman Nuri Pasha in 1885 and was named after the Sultan of the Ottoman Empire, Abdul Hamid II.

He directed Prince Faisal bin Abdulaziz, the Viceroy of Hejaz to proclaim the unification on his behalf from al-Hamidiyah Palace.

He built the al-Malazz neighborhood in Riyadh in the 1950s as a housing project for government employees before turning it into a full fledged district.