sˈɪsi stˈaɪlaɪzd æz sˈiː sˈiː; ɚɹˈɪdʒɪnəli sˈiː sˈiː ɪz ðə bɹˈænd nˈeɪm əvə wˈaɪd ɹˈeɪndʒ ʌv fɹˈuːtflˈeɪvɚd bˈɛvɚɹɪdʒᵻz pɹədˈuːst baɪ dˈʌtʃ bˈɛvɚɹɪdʒ mˌænjuːfˈæktʃɚɹɪŋ kˈʌmpəni vɹuːmˈoʊnə ˌʌndɚɹ ɐ dʒˈɔɪnt vˈɛntʃɚ wɪð hˈaɪnɛkən ˌɪntɚnˈæʃənəl sˈɪns nˈaɪntiːnhˈʌndɹɪd fˈɪfti wˈʌn.
Sisi (stylized as SiSi; originally si si) is the brand name of a wide range of fruit-flavoured beverages produced by  Dutch beverage manufacturing company Vrumona under a joint venture with Heineken International since 1951.