This is a partial list of unnumbered minor planets for principal provisional designations assigned during 1–31 August 2004. , a total of 181 bodies remain unnumbered for this period. Objects for this year are listed on the following pages: A–B · C · D–E · F · G–H · J–O · P–Q · Ri · Rii · Riii · S · Ti · Tii · Tiii · Tiv · U–V · W–X and Y. Also see previous and next year.

P

|- id="2004 PJ" bgcolor=#FFC2E0 | 4 || 2004 PJ || AMO || 22.8 || data-sort-value="0.098" | 98 m || single || 71 days || 23 Aug 2004 || 110 || align=left | — || |- id="2004 PK" bgcolor=#FA8072 | 0 || 2004 PK || MCA || 17.14 || 1.8 km || multiple || 2004–2021 || 04 Oct 2021 || 163 || align=left | — || |- id="2004 PL1" bgcolor=#FA8072 | 0 || || MCA || 18.76 || data-sort-value="0.53" | 530 m || multiple || 2004–2021 || 08 May 2021 || 115 || align=left | — || |- id="2004 PK2" bgcolor=#FA8072 | 0 || || MCA || 19.56 || data-sort-value="0.41" | 360 m || multiple || 2004-2021 || 13 Sep 2021|| 61 || align=left | — || |- id="2004 PM2" bgcolor=#FFC2E0 | 1 || || AMO || 19.3 || data-sort-value="0.49" | 490 m || multiple || 2004–2012 || 22 Jun 2012 || 109 || align=left | — || |- id="2004 PO5" bgcolor=#E9E9E9 | 1 || || MBA-M || 18.21 || data-sort-value="0.98" | 980 m || multiple || 2004-2022 || 07 Jan 2022 || 29 || align=left | — || |- id="2004 PZ10" bgcolor=#fefefe | 0 || || MBA-I || 18.70 || data-sort-value="0.54" | 540 m || multiple || 2004–2021 || 08 Sep 2021 || 43 || align=left | Alt.: 2021 LL19 || |- id="2004 PL11" bgcolor=#d6d6d6 | 1 || || MBA-O || 19.31 || 2.8 km || multiple || 2004-2022 || 25 Dec 2022 || 34 || align=left | — || |- id="2004 PD14" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.3 || 1.5 km || multiple || 2004–2018 || 15 Dec 2018 || 62 || align=left | — || |- id="2004 PZ19" bgcolor=#FFC2E0 | 6 || || APO || 24.5 || data-sort-value="0.045" | 45 m || single || 2 days || 10 Aug 2004 || 95 || align=left | — || |- id="2004 PE20" bgcolor=#FFC2E0 | 1 || || AMO || 20.1 || data-sort-value="0.34" | 340 m || multiple || 2004–2014 || 21 Nov 2014 || 232 || align=left | — || |- id="2004 PF20" bgcolor=#FFC2E0 | 6 || || AMO || 22.5 || data-sort-value="0.11" | 110 m || single || 30 days || 08 Sep 2004 || 67 || align=left | — || |- id="2004 PG20" bgcolor=#FFC2E0 | 7 || || AMO || 24.5 || data-sort-value="0.045" | 45 m || single || 32 days || 09 Sep 2004 || 34 || align=left | — || |- id="2004 PK26" bgcolor=#FA8072 | – || || MCA || 19.0 || data-sort-value="0.47" | 470 m || single || 43 days || 21 Sep 2004 || 44 || align=left | — || |- id="2004 PB27" bgcolor=#d6d6d6 | 1 || || MBA-O || 18.04 || 1.7 km || multiple || 2004-2022 || 08 Jun 2022 || 120 || align=left | — || |- id="2004 PY27" bgcolor=#FFC2E0 | 1 || || AMO || 20.7 || data-sort-value="0.26" | 260 m || multiple || 2004–2018 || 07 Jun 2018 || 33 || align=left | — || |- id="2004 PM30" bgcolor=#fefefe | 0 || || HUN || 18.5 || data-sort-value="0.59" | 590 m || multiple || 2004–2020 || 06 Oct 2020 || 74 || align=left | Disc.: LINEARAdded on 13 September 2020 || |- id="2004 PR42" bgcolor=#FA8072 | – || || MCA || 20.5 || data-sort-value="0.24" | 240 m || single || 14 days || 22 Aug 2004 || 53 || align=left | — || |- id="2004 PU42" bgcolor=#FFC2E0 | 6 || || APO || 26.7 || data-sort-value="0.016" | 16 m || single || 4 days || 14 Aug 2004 || 64 || align=left | — || |- id="2004 PD59" bgcolor=#E9E9E9 | 1 || || MBA-M || 18.1 || 1.0 km || multiple || 2004–2017 || 24 Oct 2017 || 38 || align=left | —Added on 22 July 2020Alt.: 2017 NC4 || |- id="2004 PA60" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.92 || 1.1 km || multiple || 2004–2021 || 09 Aug 2021 || 96 || align=left | — || |- id="2004 PD62" bgcolor=#d6d6d6 | 0 || || MBA-O || 16.90 || 2.3 km || multiple || 2004–2021 || 03 Oct 2021 || 89 || align=left | —Added on 22 July 2020 || |- id="2004 PB66" bgcolor=#d6d6d6 | 5 || || MBA-O || 17.5 || 1.8 km || single || 59 days || 09 Sep 2004 || 25 || align=left | — || |- id="2004 PR66" bgcolor=#E9E9E9 | 9 || || MBA-M || 18.96 || data-sort-value="0.90" | 900 m || single || 4 days || 12 Aug 2004 || 11 || align=left | Disc.: CINEOSAdded on 21 August 2021 || |- id="2004 PS66" bgcolor=#fefefe | 0 || || MBA-I || 17.9 || data-sort-value="0.78" | 780 m || multiple || 2004–2020 || 23 Jan 2020 || 59 || align=left | — || |- id="2004 PD67" bgcolor=#FA8072 | 0 || || MCA || 19.39 || data-sort-value="0.39" | 390 m || multiple || 2004–2017 || 16 Nov 2017 || 125 || align=left | — || |- id="2004 PA80" bgcolor=#d6d6d6 | 0 || || MBA-O || 17.43 || 1.8 km || multiple || 2004–2021 || 31 Oct 2021 || 110 || align=left | Alt.: 2021 PF4 || |- id="2004 PD86" bgcolor=#FA8072 | 0 || || MCA || 18.7 || data-sort-value="0.54" | 540 m || multiple || 2004–2020 || 23 Jun 2020 || 63 || align=left | — || |- id="2004 PO86" bgcolor=#fefefe | 0 || || MBA-I || 19.13 || data-sort-value="0.44" | 440 m || multiple || 2004–2021 || 08 Nov 2021 || 56 || align=left | Alt.: 2021 RR52 || |- id="2004 PF88" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.71 || 1.2 km || multiple || 2004–2021 || 05 Oct 2021 || 146 || align=left | — || |- id="2004 PR92" bgcolor=#FFC2E0 | 8 || || APO || 25.1 || data-sort-value="0.034" | 34 m || single || 8 days || 19 Aug 2004 || 49 || align=left | — || |- id="2004 PS92" bgcolor=#FFC2E0 | 2 || || AMO || 18.9 || data-sort-value="0.59" | 590 m || multiple || 2004–2012 || 09 May 2012 || 65 || align=left | — || |- id="2004 PO95" bgcolor=#d6d6d6 | 1 || || MBA-O || 17.67 || 1.6 km || multiple || 2004-2025 || 13 Sep 2025 || 26 || align=left | — || |- id="2004 PR96" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.09 || 1.0 km || multiple || 2004–2021 || 24 Oct 2021 || 71 || align=left | Disc.: CINEOSAdded on 21 August 2021 || |- id="2004 PB97" bgcolor=#FFC2E0 | 6 || || AMO || 25.3 || data-sort-value="0.031" | 31 m || single || 13 days || 24 Aug 2004 || 20 || align=left | — || |- id="2004 PD97" bgcolor=#FFC2E0 | 5 || || AMO || 21.6 || data-sort-value="0.17" | 170 m || single || 58 days || 09 Oct 2004 || 29 || align=left | — || |- id="2004 PE97" bgcolor=#FA8072 | 0 || || MCA || 18.9 || data-sort-value="0.49" | 490 m || multiple || 2004–2018 || 08 Aug 2018 || 100 || align=left | — || |- id="2004 PO100" bgcolor=#E9E9E9 | E || || MBA-M || 18.3 || data-sort-value="0.65" | 650 m || single || 21 days || 01 Sep 2004 || 11 || align=left | — || |- id="2004 PY106" bgcolor=#fefefe | 1 || || MBA-I || 18.9 || data-sort-value="0.49" | 490 m || multiple || 2004–2019 || 29 Nov 2019 || 24 || align=left | —Added on 22 July 2020 || |- id="2004 PS107" bgcolor=#C2E0FF | 3 || || TNO || 7.6 || 126 km || multiple || 2004–2014 || 29 Jul 2014 || 12 || align=left | LoUTNOs, other TNO || |- id="2004 PU107" bgcolor=#C2E0FF | E || || TNO || 6.7 || 157 km || single || 29 days || 11 Sep 2004 || 5 || align=left | LoUTNOs, cubewano? || |- id="2004 PV107" bgcolor=#C2E0FF | E || || TNO || 5.9 || 275 km || single || 1 day || 14 Aug 2004 || 3 || align=left | LoUTNOs, other TNO || |- id="2004 PX107" bgcolor=#C2E0FF | 3 || || TNO || 7.26 || 117 km || multiple || 2003–2021 || 12 Sep 2021 || 20 || align=left | LoUTNOs, cubewano (cold) || |- id="2004 PZ107" bgcolor=#C2E0FF | 5 || || TNO || 7.67 || 100 km || multiple || 2004–2021 || 09 Jul 2021 || 19 || align=left | LoUTNOs, cubewano? || classical|cold]]) || |- id="2004 PB108" bgcolor=#C2E0FF | 4 || || TNO || 6.50 || 243 km || multiple || 2004–2021 || 12 Sep 2021 || 47 || align=left | LoUTNOs, other TNO, albedo: 0.035; binary: 132 km || |- id="2004 PX110" bgcolor=#E9E9E9 | 2 || || MBA-M || 17.5 || data-sort-value="0.94" | 940 m || multiple || 2004–2019 || 05 Feb 2019 || 34 || align=left | — || |- id="2004 PY111" bgcolor=#C2E0FF | E || || TNO || 6.6 || 164 km || single || 32 days || 13 Sep 2004 || 4 || align=left | LoUTNOs, cubewano? || |- id="2004 PZ111" bgcolor=#C2E0FF | E || || TNO || 7.1 || 130 km || single || 32 days || 13 Sep 2004 || 4 || align=left | LoUTNOs, cubewano? || |- id="2004 PC112" bgcolor=#C2E0FF | E || || TNO || — || 55 km || single || 29 days || 11 Sep 2004 || 4 || align=left | LoUTNOs, cubewano? || |- id="2004 PD112" bgcolor=#C2E0FF | 4 || || TNO || 6.29 || 180 km || multiple || 2004-2011 || 03 Sep 2011 || 17 || align=left | LoUTNOs, SDO || |- id="2004 PE112" bgcolor=#C2E0FF | E || || TNO || 6.7 || 157 km || single || 31 days || 13 Sep 2004 || 4 || align=left | LoUTNOs, cubewano? || |- id="2004 PF112" bgcolor=#C2E0FF | 9 || || TNO || 6.7 || 157 km || single || 30 days || 13 Sep 2004 || 4 || align=left | LoUTNOs, cubewano? || |- id="2004 PV114" bgcolor=#E9E9E9 | 1 || || MBA-M || 18.6 || 1.1 km || multiple || 2004–2018 || 12 Oct 2018 || 29 || align=left | — || |- id="2004 PY114" bgcolor=#d6d6d6 | 0 || || MBA-O || 17.16 || 2.1 km || multiple || 2004–2021 || 05 Dec 2021 || 74 || align=left | — || |- id="2004 PJ116" bgcolor=#E9E9E9 | 0 || || MBA-M || 18.71 || data-sort-value="0.54" | 540 m || multiple || 2004–2021 || 04 Oct 2021 || 21 || align=left | Disc.: Mauna Kea Obs.Added on 11 May 2021Alt.: 2020 HY82 || |- id="2004 PO116" bgcolor=#d6d6d6 | 0 || || MBA-O || 17.49 || 1.8 km || multiple || 2004–2021 || 30 Nov 2021 || 52 || align=left | Disc.: Mauna KeaAdded on 24 December 2021 || |- id="2004 PQ116" bgcolor=#d6d6d6 | 1 || || MBA-O || 17.4 || 1.8 km || multiple || 2004–2020 || 14 Sep 2020 || 42 || align=left | — || |- id="2004 PU116" bgcolor=#d6d6d6 | 2 || || MBA-O || 17.8 || 1.5 km || multiple || 2004–2021 || 18 Jan 2021 || 27 || align=left | — || |- id="2004 PX116" bgcolor=#fefefe | 0 || || MBA-I || 18.9 || data-sort-value="0.49" | 490 m || multiple || 2003–2018 || 16 May 2018 || 32 || align=left | — || |- id="2004 PY116" bgcolor=#d6d6d6 | 0 || || MBA-O || 17.4 || 1.8 km || multiple || 2004–2020 || 16 Oct 2020 || 32 || align=left | — || |- id="2004 PT117" bgcolor=#C2E0FF | 4 || || TNO || 6.7 || 152 km || multiple || 2004–2013 || 06 Oct 2013 || 19 || align=left | LoUTNOs, cubewano (cold) || |- id="2004 PU117" bgcolor=#C2E0FF | 4 || || TNO || 6.92 || 137 km || multiple || 2004–2021 || 12 Sep 2021 || 20 || align=left | LoUTNOs, cubewano (cold) || |- id="2004 PV117" bgcolor=#C2E0FF | 4 || || TNO || 6.5 || 167 km || multiple || 2004–2013 || 08 Jun 2013 || 29 || align=left | LoUTNOs, cubewano (cold), binary: 89 km || |- id="2004 PW117" bgcolor=#C2E0FF | 3 || || TNO || 6.35 || 178 km || multiple || 2004–2021 || 09 Jul 2021 || 23 || align=left | LoUTNOs, cubewano (cold), binary: 139 km || |- id="2004 PX117" bgcolor=#C2E0FF | 4 || || TNO || 6.5 || 167 km || multiple || 2004–2013 || 07 Oct 2013 || 17 || align=left | LoUTNOs, cubewano (cold), binary: 139 km || |- id="2004 PV118" bgcolor=#fefefe | 1 || || MBA-I || 18.6 || data-sort-value="0.57" | 570 m || multiple || 2004–2020 || 05 Dec 2020 || 54 || align=left | — || |- id="2004 PM119" bgcolor=#fefefe | 0 || || MBA-M || 18.12 || 1.0 km || multiple || 2004–2021 || 05 Jul 2021 || 30 || align=left | — || |- id="2004 PO119" bgcolor=#E9E9E9 | 0 || || MBA-M || 17.91 || 1.1 km || multiple || 2004–2021 || 08 Sep 2021 || 61 || align=left | — || |- id="2004 PS119" bgcolor=#fefefe | 0 || || MBA-I || 19.24 || data-sort-value="0.42" | 420 m || multiple || 2004–2021 || 11 Nov 2021 || 41 || align=left | — || |- id="2004 PH120" bgcolor=#fefefe | 0 || || MBA-I || 18.7 || data-sort-value="0.54" | 540 m || multiple || 2004–2019 || 10 Jun 2019 || 37 || align=left | — || |- id="2004 PK120" bgcolor=#fefefe | 0 || || MBA-I || 19.1 || data-sort-value="0.45" | 450 m || multiple || 2004–2019 || 26 Nov 2019 || 36 || align=left | — || |- id="2004 PL120" bgcolor=#fefefe | 0 || || MBA-I || 19.13 || data-sort-value="0.44" | 440 m || multiple || 2004–2021 || 02 Dec 2021 || 56 || align=left | — || |- id="2004 PN120" bgcolor=#fefefe | 1 || || MBA-I || 18.7 || data-sort-value="0.54" | 540 m || multiple || 2004–2021 || 16 Jan 2021 || 51 || align=left | — || |- id="2004 PP120" bgcolor=#fefefe | 0 || || MBA-I || 18.6 || data-sort-value="0.57" | 570 m || multiple || 2004–2019 || 22 Oct 2019 || 42 || align=left | — ||