Bar Bossa in Shibuya is a quiet gem of a place, perfect for bossa nova fans and/or couples looking for a dark & romantic spot to drink. It was opened in 1997 by owner/sole bartender Hayashi-san, a warm and mellow host who has been to Brazil several times over the years.
The bar is spacious with room for six at the counter and about 14 seats spread around some small tables. Hayashi-san keeps the music low and mellow; this is not the place for those looking for rowdy Brazilian samba and dancing. The wooden decor and warm colors are effective, as you relax immediately upon sitting down.
The drinks menu is impressive, featuring some Brazilian choices like Pirassununga51, Ypioca Ouro and of course Caipirinha, in addition to cognacs, whiskies and wine. Small and delicious snacks are available but with all the great food available on the back streets of Udagawa-Cho in Shibuya it's easy to eat before or after stopping in Bar Bossa.
Bar Bossa has a nominal policy of not allowing in male customers by themselves as to prevent harassment of the female drinkers, but this can be waived if Hayashi-san knows you (and generally is not meant towards non-Japanese visitors, but rather drunken old Japanese men.) A few kind words explaining you read about Bar Bossa here or on his JJazz.Net blog page and Hayashi-san will surely let you in. For bossa nova fans or anyone just looking for a quiet, sophisticated place amidst the Shibuya craziness, Bar Bossa is heartily recommended.
A short walk from the Bunkamura complex in Shibuya, easy to find from the website map.