This research note introduces a new publicly available dataset identifying which federal candidates are out as LGBTQ2S+. The dataset comprises 4,201 candidates who ran in 2015, 2019 and 2021 for the five parties that won seats in the House of Commons. In this research note, we describe the replicable procedure we followed to identify out LGBTQ2S+ candidates, which involved systematic individual candidate searches. This procedure identified 176 LGBTQ2S+ candidates in total, which is more than in previous datasets. We illustrate how the data can be used by documenting how LGBTQ2S+ candidates changed over time relative to straight cisgender candidates. This dataset will allow researchers to examine a range of questions about LGBTQ2S+ representation as well as conduct intersectional analyses.