Opinion polling for the 2017 Czech parliamentary election started immediately after the 2013 parliamentary election. Monthly party ratings are conducted by Sanep, TNS Aisa, STEM and CVVM.

Graphical summary

Percentage

Poll results are listed in the tables below in reverse chronological order, showing the most recent first. The highest percentage figure in each polling survey is displayed in bold, and the background shaded in the leading party's colour. In case of a tie, then no figure is shaded. Poll results use the date the survey's fieldwork was done, as opposed to the date of publication. However, if this date is unknown, the date of publication will be given instead.

There was an electoral threshold of 5% for political parties, and 10% for party alliances. In 2017 KDU-ČSL and STAN formed a political alliance, meaning they needed 10% to reach the threshold. They later disbanded this coalition.

Aggregate polls Aggregate polling made by kdovyhrajevolby.cz website. Date Polling Firm ČSSD ANO KSČM TOP 09 ODS ÚSVIT KDU-ČSL STAN ZELENÍ PIRÁTI SVOBODNÍ SPD REAL Lead 20 - 21 Oct 2017 parliamentary election 7.315 seats 29.678 seats 7.815 seats 5.37 seats 11.325 seats 0.00 5.810 seats 5.26 seats 1.5 0 10.822 seats 1.6 0 10.622 seats 0.7 0 18.353 seats 16 Oct 2017 kdovyhrajevolby.cz 12.3429 seats 25.3267 seats 11.4127 seats 6.1811 seats 9.2020 seats 5.7510 seats 3.960 3.100 7.6417 seats 2.090 9.0220 seats 0.950 13.0536 seats 15 Oct 2017 kdovyhrajevolby.cz 13.2532 seats 26.2168 seats 11.5626 seats 6.5112 seats 9.2520 seats 5.279 seats 3.700 3.090 7.0415 seats 2.250 8.4918 seats 0.980 13.0435 seats 13 Oct 2017 kdovyhrajevolby.cz 13.1032 seats 26.2368 seats 11.4126 seats 6.4713 seats 8.6318 seats 5.0310 seats 3.820 3.080 7.0215 seats 2.250 8.3318 seats 1.040 13.1336 seats 11 Oct 2017 kdovyhrajevolby.cz 12.9031 seats 26.5568 seats 11.5726 seats 6.7313 seats 8.8919 seats 5.0510 seats 3.660 3.070 7.0815 seats 2.430 8.2918 seats 1.090 13.6537 seats 3 Oct 2017 kdovyhrajevolby.cz 13.9133 seats 25.9969 seats 11.6226 seats 7.1315 seats 9.1520 seats 5.411 seats 3.680 2.670 6.5710 seats 2.40 7.5816 seats 1.20 12.0836 seats 15 Sep 2017 kdovyhrajevolby.cz 13.81 25.89 11.68 7.49 10.93 6.24 3.35 2.13 5.56 1.88 6.63 1.61 12.08 1 Sep 2017 kdovyhrajevolby.cz 13.02 26.82 12.10 7.54 10.59 6.59 2.03 2.00 4.51 2.08 6.57 1.55 13.80 25-26 Oct 2013 Election Results 20.550 seats 18.747 seats 14.933 seats 12.026 seats 7.716 seats 6.914 seats 6.814 seats 3.20 2.70 2.50 1.83 seats

Election Potential Date Polling Firm ČSSD ANO KSČM TOP 09 ODS ÚSVIT KDU-ČSL STAN ZELENÍ PIRÁTI SVOBODNÍ SPD REAL Others Turnout Lead 26 Sep - 14 Oct Median 16.5 32.5 13.0 12.5 15.0 10.5 12.0 7.0 14.0 14.5 64.0 16.0 3 - 10 Oct Focus 8.0 - 21.0 13.0 - 29.0 7.0 - 14.0 7.0 - 17.0 5.0 - 15.0 4.0 - 12.0 2.0 - 16.0 2.0 - 11.0 5.0 - 15.0 5.0 - 16.0 64.0 8.0 28 Sep - 4 Oct Sanep 7.2 - 18.1 15.1 - 26.3 8.0 - 14.1 3.2 - 8.7 6.5 - 14.6 4.2 - 8.9 2.4 - 7.9 2.1 - 7.1 3.0 - 10.3 1.0 - 3.6 6.5 - 14.6 3.5 - 7.0 61.8 7 - 13 Sep Sanep 10.2 - 18.7 16.9 - 28.1 9.9 - 14.8 4.2 - 9.4 6.5 - 14.3 5.1 - 9.8 2.3 - 6.8 1.2 - 6.8 2.9 - 8.4 1.1 - 3.7 5.6 - 13.8 3.5 - 6.9 57.1 13 Aug - 9 Sep Phoenix Research 10.5 - 13.9 23.0 - 28.2 10.6 - 12.9 4.1 - 5.9 8.3 - 10.9 5.0 - 5.7 4.4 - 6.2 2.0 - 3.6 4.3 - 5.9 1.3 - 2.8 3.8 - 5.3 2.4 - 5.5 15.7 17 Aug - 23 Aug Sanep 9.8 - 18.1 17.1 - 28.2 9.8 - 14.2 4.3 - 8.3 6.2 - 12.2 0.1 - 1.1 5.2 - 9.7 1.3 - 4.6 0.5 - 3.8 2.6 - 6.0 1.2 - 3.1 5.2 - 12.5 3.5 - 6.9 58.6 10.1 13 - 18 Jul Sanep 9.6 - 17.8 17.5 - 28.1 9.7 - 13.6 4.2 - 7.8 6.5 - 12.8 0.1 - 1.2 5.3 - 10.1 0.5 - 4.0 2.5 - 5.9 1.3 - 3-2 5.2 - 12.4 4.3 - 7.1 58.6 10.3 11–17 May Sanep 13.1 - 20.4 15.3 - 27.8 10.2 - 14.8 4.2 - 7.8 6.7 - 11.3 0.5 - 1.4 4.5 - 10.4 1.5 - 4.3 1.8 - 5.3 1.5 - 4.3 4.2 - 9.2 1.2 - 5.1 57.4 7.4 25-26 Oct 2013 Election Results 20.550 seats 18.747 seats 14.933 seats 12.026 seats 7.716 seats 6.914 seats 6.814 seats 3.20 2.70 2.50 2.6 59.5 1.83 seats

Individual polls