You can find katsuobushi in almost any grocery store in Japan, but if you want to taste the flavor of katsuobushi, visit a katsuobushi specialty shop.

＜Yamato-ya Katsuobushi＞

This store sells the highest grade of carefully selected katsuobushi available. It is created with pole-and-line caught bonitos using the honkarebushi drying process, and produced with no artificial food additives, preservatives, coloring, or flavor enhancers. Select kombu (edible kelp) is also available for purchase, in addition to katsuobushi.
Address: 1-5-1 Muromachi, Nihonbashi, Chuo-ku, Tokyo-to, ZIP 103-0022　Telephone: +81(3)3241-6551　FAX: +81(3)3241-2901　http://katsuobushi.net/index.html　Business Hours: 10:00 am – 6:00 pm JST (Monday to Saturday) *Closed on Sundays and National Holidays

＜Kambutsu-ya ‘YAGI-CHO Honten’ Founded 270+ years ago＞

This store has been selling katsuobushi and other dried food products for more than 270 years. The store sells ingredients to make various types of dashi (a basic broth to prepare Japanese cuisine) such as katsuobushi, shiitake mushrooms, kombu, niboshi (small dried sardines) etc., as well as premium grade dried food products, such as beans, dried noodles, koya-dofu (freeze-dried tofu), and a variety of furikake (a condiment used as a seasoning for rice). All products are selected with a strict quality standard.
Address: 1-7-2 Muromachi, Nihonbashi, Chuo-ku, Tokyo-to, ZIP103-0022　TEL: +81(3)3241-1211　FAX: +81(3)3241-1213 (24 Hours)　Business Hours: 10:00 am – 6:00 pm JST *Open daily, except January 1st and 2nd.　http://www.yagicho-honten.jp/　

＜Ninben Nihonbashi Main Shop＞

A long treasured store specializing in katsuobushi for over 300 years. Shaving demonstrations are held and performed by shaving masters in the “Nihonbashi Kezuri Section” of their Nihonbashi main store. Fresh shaved honkarebushi can also be purchased.
Business Hours: 10:00 am – 8:00 pm JST (*Open daily, except January 1st. **Open from 10:00 am to 6:00 pm JST on December 31st.)　Address: 1st Floor of the COREDO Muromachi 1, 2-2-1 Muromachi, Nihonbashi, Chuo-ku, Tokyo　TEL: +81(3)3241-0968　FAX: +81(3)3241-6054　http://www.ninben.jp/(English language website)

＜Tuskiji Outer Market＞

Known as the Tsukiji Jyogai Shijo, this area is located just outside of the Tsukiji market and is often referred to as ‘Japan’s Food Kitchen.’ Shops carry a wide variety of seafood and other groceries from all over Japan. A number of shops also sell katsuobushi.

▼For more details about shops that sell katsuobushi, visit: http://www.tsukiji.or.jp/search/shoplist/cat-e/cat-16/
▼For more details regarding the business hours, etc. please visit their official website: http://www.tsukiji.or.jp/index.html