| Order: | Head of Miyoshi clan |
| Predecessor: | Miyoshi Nagayoshi |
| Termstart: | 1564 |
| Termend: | 1573 |
| Order1: | Lord of Kawachi |
| Predecessor1: | Sogō Kazumasa |
| Miyoshi Yoshitsugu | |
| Native Name: | 三好 義継 |
| Birth Date: | 1549 |
| Death Date: | December 10, 1573 |
| Allegiance: | Miyoshi clan |
| Rank: | Daimyo |
| Unit: | Sogō clan |
| Father: | Sogō Kazumasa |
| Relatives: | Miyoshi Nagayoshi (uncle) Miyoshi Yoshikata (uncle) Atagi Fuyuyasu (uncle) |
| Battles: | Honkokuji Incident (1569) |
, adopted son of Nagayoshi, was a samurai of the Sengoku period who was practically the last head of Miyoshi clan, daimyō of Kawachi Province of Japan.[1] His wife was Ashikaga Yoshiaki's sister.[1]
Born to Sogō Kazumasa in 1549, younger brother of Miyoshi Nagayoshi, he was initially known as Sogō Shigemasa (Japanese: 十河 重存). After 1561 when his father died, he was reared by Nagayoshi.
When Nagayoshi's eldest son Yoshioki died in 1563, he was adopted as a son and changed his surname to Miyoshi. The following year when Nagayoshi died, Yoshitsugu succeeded him as head of the clan.[1]