This study aims to identify speech events in the mangalakkai tradition among the Toba Batak ethnic group in Tinggir Nipasir Village, Laguboti District, Toba Regency, based on the SPEAKING components proposed by Dell Hymes. This study employed a qualitative descriptive method. The research instruments included observation, interviews, and documentation. Data were collected through observation, documentation, speech recordings, and interviews with informants who were knowledgeable about the mangalakkai tradition. Data analysis was conducted through data reduction, data display, and conclusion drawing. The results revealed that all SPEAKING components were present in the mangalakkai tradition. The speech event took place in the family home prior to the wedding ceremony and involved parents, the younger sibling who married first, the prospective spouse, the older sibling who was preceded in marriage, and close relatives. The communicative purposes included requesting permission, seeking blessings, and maintaining family harmony. The sequence of speech occurred systematically, beginning with the opening remarks, followed by the expression of intentions, responses, prayers, and advice. The language used was predominantly Toba Batak, with occasional code-mixing with Indonesian. The norms of interaction reflected respect for the older sibling, politeness, sincerity, and family values. The speech genres identified in the tradition included prayers, advice, requests, blessings, and umpasa (traditional Batak expressions). The findings indicate that speech in the mangalakkai tradition functions not only as a means of communication but also as a medium for preserving cultural values and strengthening kinship ties within the Toba Batak community.