Sri Sri Ramakrishna Kathamrita (Bengali: শ্রীশ্রীরামকৃষ্ণ-কথামৃত, Śrī-Śrī-Rāmakṛṣṇa-Kathāmṛta, The Nectar of Sri Ramakrishna’s Words) is a Bengali five-volume work by Mahendranath Gupta (1854–1932) which recounts conversations and activities of the 19th century Indian mystic Ramakrishna, and published consecutively in years 1902, 1904, 1908, 1910 and 1932.

The Kathamrita is a regarded as a Bengali classic and revered among the followers as a sacred scripture. Its best-known translation into English is entitled The Gospel of Sri Ramakrishna (1942).