The 2023 season was Sport Club Internacional's 113th season in existence. As well as the Campeonato Brasileiro Série A, the club competed in the Copa do Brasil, the Campeonato Gaúcho and the Copa Libertadores.
Internacional has qualified for the 2023 Libertadores group stage, which was drawn by CONMEBOL on 27 March 2023.
The draw for the round of 16 was held on 5 July 2023.
The league fixtures were announced on 14 February 2023.
Player with no appearances not included on list. Matches played as a sub in parentheses.
* Denotes a player that did not end the season at the club
<small>The list is sorted by shirt number when total clean sheets are equal. Numbers in parentheses represent games where both goalkeepers participated and both kept a clean sheet; the number in parentheses is awarded to the goalkeeper who was substituted on, whilst a full clean sheet is awarded to the goalkeeper who was on the field at the start of play.</small>
<small>Penalties stats do not include penalty shootouts.</small>