Rubuta ci gaba don wannan sakin layi - Matsui da kansa ya ba da gudummawar dala 500,000 don taimakon sadaka ga wadanda ke fama da girgizar kasa ta Tekun Indiya a shekarar 2004. Ya kuma ba da gudummawar dala dubu 620,000 ga kokarin agaji ga wadanda girgizar kasa da tsunami na 2011 suka shafa
a yankin Tōhoku na Japan. A ranar 21 ga Maris, 2015, Matsui da tsohon abokin aikinsa Derek Jeter sun gudanar da taron sadaka na baseball don tallafawa yara da girgizar kasa da tsunami suka shafa a 2011, a Tokyo Dome. Taron ya hada da asibitin wasan baseball da wasan tseren gida tsakanin Matsui da Jeter.