Sigurjón may refer to:
- Sigurjón Birgir Sigurðsson (born 1962), known as Sjón, Icelandic author and poet
- Sigurjón Brink (1974–2011), also known as Sjonni or Sjonni brink, an Icelandic musician and singer
- Sigurjón Þórðarson (born 1964), Icelandic politician
- Sigurjón Kjartansson (born 1968), Icelandic comedian, writer and producer
- Sigurjón Sighvatsson (born 1952), veteran Icelandic film producer and businessman