In the run up to the 2019 Greek legislative election, various organizations carried out opinion polling to gauge voting intention in Greece during the term of the 17th Hellenic Parliament. Results of such polls are displayed in this article. The date range for these opinion polls is from the previous legislative election, held on 20 September 2015, to the day the next election was held, on 7 July 2019.
Polls are listed in reverse chronological order, showing the most recent first and using the dates when the survey fieldwork was done, as opposed to the date of publication. Where the fieldwork dates are unknown, the date of publication is given instead. The highest percentage figure in each polling survey is displayed with its background shaded in the leading party's colour. If a tie ensues, this is applied to the figures with the highest percentages. The "Lead" columns on the right shows the percentage-point difference between the parties with the highest percentages in a given poll.