Coffee Swamp is a small cafe in a narrow alley in Nishi-Shinjuku, Shinjuku City, Tokyo. It serves coffee and filter coffee, and its cafe latte and flat white are rich and nutty, with filter coffee and drip coffee also on offer. The shop draws enough customers that a wait can form, and orders can be placed in English, with beans also available for purchase. The space is small, so bringing a suitcase is inconvenient.